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  • al​dol​ase
    noun
    al·​dol·​ase
    ˈal-də-ˌlās -ˌlāz

    Definition

    • a crystalline enzyme that occurs widely in living systems and catalyzes reversibly the cleavage of a phosphorylated fructose into triose sugars
    First Known Use
    1940, in the meaning defined above
    History and Etymology
    aldol + -ase
    fal​low
    adjective (1)
    fal·​low
    ˈfa-(ˌ)lō

    Definition (Entry 1 of 4)

    • of a light yellowish-brown color //a fallow greyhound
    noun

    Definition (Entry 2 of 4)

    • usually cultivated land that is allowed to lie idle during the growing season
    • obsolete plowed land
    • the state or period of being fallow //Summer fallow is effective for destroying weeds.
    • the tilling of land without sowing it for a season
    verb
    fal​lowed; fal​low​ing; fal​lows

    Definition (Entry 3 of 4)

    • transitive ​verb
    • to plow, harrow, and break up (land) without seeding to destroy weeds and conserve soil moisture
    adjective (2)

    Definition (Entry 4 of 4)

    • left untilled or unsown after plowing
    • dormant, inactive —used especially in the phrase to lie fallow //… at this very moment there are probably important inventions lying fallowHarper's
    Other Words
    Adjective (2)
    • fal​low​ness noun
    Synonyms & Antonyms
    Synonyms: Adjective (2)
    dead dormant free idle inactive inert inoperative latent off unused vacant
    Antonyms: Adjective (2)
    active alive busy employed functioning going living on operating operative running working
    Examples
    Adjective (2)
    • //the coal mine has been lying fallow since the drop in prices made it unprofitable
    First Known Use
    Adjective (1)
    before 12th century, in the meaning defined above
    Noun
    before 12th century, in the meaning defined at sense 2
    Verb
    before 12th century, in the meaning defined above
    Adjective (2)
    14th century, in the meaning defined at sense 1
    History and Etymology
    Adjective (1)
    Middle English falwe, falew, falow "sallow, dusky, faded, yellow tending toward red or brown (of a horse)," going back to Old English fealu "yellow tending toward red, brown or gray (though in some contexts less clear)," going back to Germanic *falwa- (whence also Old Saxon falu "pale, dun, yellowish," Old High German falo "yellowish, tending toward red, brown, or gold," Old Icelandic fǫlr "pale"), going back to dialectal Indo-European *pol-u̯o-, whence also Old Church Slavic plavŭ "golden (of a ripe field of grain)," Russian polóvyj, polovój "pale yellow" (of horses or dogs), Polish płowy "fair, flaxen," Bosnian-Croatian-Serbian plâv "blue, light-colored (of hair), blond," Lithuanian pal͂vas "pale, pale yellow," Latvian pal͂ss; perhaps from the same base, with varying ablaut and suffixation: Latin pall- in pallēre "to be pale or bloodless, have a pale color," pallidus "pale, colorless," pallor "paleness of complexion, loss of color" (< *palu̯o-?); Latin pullus "drab-colored, dingy, somber" (< *polu̯o-
    a-hidden='true'>, push race spur stir urge
  • al​dol​ase
    noun
    al·​dol·​ase
    ˈal-də-ˌlās -ˌlāz

    Definition

    • a crystalline enzyme that occurs widely in living systems and catalyzes reversibly the cleavage of a phosphorylated fructose into triose sugars
    First Known Use
    1940, in the meaning defined above
    History and Etymology
    aldol + -ase
    fal​low
    adjective (1)
    fal·​low
    ˈfa-(ˌ)lō

    Definition (Entry 1 of 4)

    • of a light yellowish-brown color //a fallow greyhound
    noun

    Definition (Entry 2 of 4)

    • usually cultivated land that is allowed to lie idle during the growing season
    • obsolete plowed land
    • the state or period of being fallow //Summer fallow is effective for destroying weeds.
    • the tilling of land without sowing it for a season
    verb
    fal​lowed; fal​low​ing; fal​lows

    Definition (Entry 3 of 4)

    • transitive ​verb
    • to plow, harrow, and break up (land) without seeding to destroy weeds and conserve soil moisture
    adjective (2)

    Definition (Entry 4 of 4)

    • left untilled or unsown after plowing
    • dormant, inactive —used especially in the phrase to lie fallow //… at this very moment there are probably important inventions lying fallowHarper's
    Other Words
    Adjective (2)
    • fal​low​ness noun
    Synonyms & Antonyms
    Synonyms: Adjective (2)
    dead dormant free idle inactive inert inoperative latent off unused vacant
    Antonyms: Adjective (2)
    active alive busy employed functioning going living on operating operative running working
    Examples
    Adjective (2)
    • //the coal mine has been lying fallow since the drop in prices made it unprofitable
    First Known Use
    Adjective (1)
    before 12th century, in the meaning defined above
    Noun
    before 12th century, in the meaning defined at sense 2
    Verb
    before 12th century, in the meaning defined above
    Adjective (2)
    14th century, in the meaning defined at sense 1
    History and Etymology
    Adjective (1)
    Middle English falwe, falew, falow "sallow, dusky, faded, yellow tending toward red or brown (of a horse)," going back to Old English fealu "yellow tending toward red, brown or gray (though in some contexts less clear)," going back to Germanic *falwa- (whence also Old Saxon falu "pale, dun, yellowish," Old High German falo "yellowish, tending toward red, brown, or gold," Old Icelandic fǫlr "pale"), going back to dialectal Indo-European *pol-u̯o-, whence also Old Church Slavic plavŭ "golden (of a ripe field of grain)," Russian polóvyj, polovój "pale yellow" (of horses or dogs), Polish płowy "fair, flaxen," Bosnian-Croatian-Serbian plâv "blue, light-colored (of hair), blond," Lithuanian pal͂vas "pale, pale yellow," Latvian pal͂ss; perhaps from the same base, with varying ablaut and suffixation: Latin pall- in pallēre "to be pale or bloodless, have a pale color," pallidus "pale, colorless," pallor "paleness of complexion, loss of color" (< *palu̯o-?); Latin pullus "drab-colored, dingy, somber" (< *polu̯o-
    a-hidden='true'>, push race spur stir urge
  • al​dol​ase
    noun
    al·​dol·​ase
    ˈal-də-ˌlās -ˌlāz

    Definition

    • a crystalline enzyme that occurs widely in living systems and catalyzes reversibly the cleavage of a phosphorylated fructose into triose sugars
    First Known Use
    1940, in the meaning defined above
    History and Etymology
    aldol + -ase
    fal​low
    adjective (1)
    fal·​low
    ˈfa-(ˌ)lō

    Definition (Entry 1 of 4)

    • of a light yellowish-brown color //a fallow greyhound
    noun

    Definition (Entry 2 of 4)

    • usually cultivated land that is allowed to lie idle during the growing season
    • obsolete plowed land
    • the state or period of being fallow //Summer fallow is effective for destroying weeds.
    • the tilling of land without sowing it for a season
    verb
    fal​lowed; fal​low​ing; fal​lows

    Definition (Entry 3 of 4)

    • transitive ​verb
    • to plow, harrow, and break up (land) without seeding to destroy weeds and conserve soil moisture
    adjective (2)

    Definition (Entry 4 of 4)

    • left untilled or unsown after plowing
    • dormant, inactive —used especially in the phrase to lie fallow //… at this very moment there are probably important inventions lying fallowHarper's
    Other Words
    Adjective (2)
    • fal​low​ness noun
    Synonyms & Antonyms
    Synonyms: Adjective (2)
    dead dormant free idle inactive inert inoperative latent off unused vacant
    Antonyms: Adjective (2)
    active alive busy employed functioning going living on operating operative running working
    Examples
    Adjective (2)
    • //the coal mine has been lying fallow since the drop in prices made it unprofitable
    First Known Use
    Adjective (1)
    before 12th century, in the meaning defined above
    Noun
    before 12th century, in the meaning defined at sense 2
    Verb
    before 12th century, in the meaning defined above
    Adjective (2)
    14th century, in the meaning defined at sense 1
    History and Etymology
    Adjective (1)
    Middle English falwe, falew, falow "sallow, dusky, faded, yellow tending toward red or brown (of a horse)," going back to Old English fealu "yellow tending toward red, brown or gray (though in some contexts less clear)," going back to Germanic *falwa- (whence also Old Saxon falu "pale, dun, yellowish," Old High German falo "yellowish, tending toward red, brown, or gold," Old Icelandic fǫlr "pale"), going back to dialectal Indo-European *pol-u̯o-, whence also Old Church Slavic plavŭ "golden (of a ripe field of grain)," Russian polóvyj, polovój "pale yellow" (of horses or dogs), Polish płowy "fair, flaxen," Bosnian-Croatian-Serbian plâv "blue, light-colored (of hair), blond," Lithuanian pal͂vas "pale, pale yellow," Latvian pal͂ss; perhaps from the same base, with varying ablaut and suffixation: Latin pall- in pallēre "to be pale or bloodless, have a pale color," pallidus "pale, colorless," pallor "paleness of complexion, loss of color" (< *palu̯o-?); Latin pullus "drab-colored, dingy, somber" (< *polu̯o-
    a-hidden='true'>, push race spur stir urge
  • al​dol​ase
    noun
    al·​dol·​ase
    ˈal-də-ˌlās -ˌlāz

    Definition

    • a crystalline enzyme that occurs widely in living systems and catalyzes reversibly the cleavage of a phosphorylated fructose into triose sugars
    First Known Use
    1940, in the meaning defined above
    History and Etymology
    aldol + -ase
    fal​low
    adjective (1)
    fal·​low
    ˈfa-(ˌ)lō

    Definition (Entry 1 of 4)

    • of a light yellowish-brown color //a fallow greyhound
    noun

    Definition (Entry 2 of 4)

    • usually cultivated land that is allowed to lie idle during the growing season
    • obsolete plowed land
    • the state or period of being fallow //Summer fallow is effective for destroying weeds.
    • the tilling of land without sowing it for a season
    verb
    fal​lowed; fal​low​ing; fal​lows

    Definition (Entry 3 of 4)

    • transitive ​verb
    • to plow, harrow, and break up (land) without seeding to destroy weeds and conserve soil moisture
    adjective (2)

    Definition (Entry 4 of 4)

    • left untilled or unsown after plowing
    • dormant, inactive —used especially in the phrase to lie fallow //… at this very moment there are probably important inventions lying fallowHarper's
    Other Words
    Adjective (2)
    • fal​low​ness noun
    Synonyms & Antonyms
    Synonyms: Adjective (2)
    dead dormant free idle inactive inert inoperative latent off unused vacant
    Antonyms: Adjective (2)
    active alive busy employed functioning going living on operating operative running working
    Examples
    Adjective (2)
    • //the coal mine has been lying fallow since the drop in prices made it unprofitable
    First Known Use
    Adjective (1)
    before 12th century, in the meaning defined above
    Noun
    before 12th century, in the meaning defined at sense 2
    Verb
    before 12th century, in the meaning defined above
    Adjective (2)
    14th century, in the meaning defined at sense 1
    History and Etymology
    Adjective (1)
    Middle English falwe, falew, falow "sallow, dusky, faded, yellow tending toward red or brown (of a horse)," going back to Old English fealu "yellow tending toward red, brown or gray (though in some contexts less clear)," going back to Germanic *falwa- (whence also Old Saxon falu "pale, dun, yellowish," Old High German falo "yellowish, tending toward red, brown, or gold," Old Icelandic fǫlr "pale"), going back to dialectal Indo-European *pol-u̯o-, whence also Old Church Slavic plavŭ "golden (of a ripe field of grain)," Russian polóvyj, polovój "pale yellow" (of horses or dogs), Polish płowy "fair, flaxen," Bosnian-Croatian-Serbian plâv "blue, light-colored (of hair), blond," Lithuanian pal͂vas "pale, pale yellow," Latvian pal͂ss; perhaps from the same base, with varying ablaut and suffixation: Latin pall- in pallēre "to be pale or bloodless, have a pale color," pallidus "pale, colorless," pallor "paleness of complexion, loss of color" (< *palu̯o-?); Latin pullus "drab-colored, dingy, somber" (< *polu̯o-
    a-hidden='true'>, push race spur stir urge
  • al​dol​ase
    noun
    al·​dol·​ase
    ˈal-də-ˌlās -ˌlāz

    Definition

    • a crystalline enzyme that occurs widely in living systems and catalyzes reversibly the cleavage of a phosphorylated fructose into triose sugars
    First Known Use
    1940, in the meaning defined above
    History and Etymology
    aldol + -ase
    fal​low
    adjective (1)
    fal·​low
    ˈfa-(ˌ)lō

    Definition (Entry 1 of 4)

    • of a light yellowish-brown color //a fallow greyhound
    noun

    Definition (Entry 2 of 4)

    • usually cultivated land that is allowed to lie idle during the growing season
    • obsolete plowed land
    • the state or period of being fallow //Summer fallow is effective for destroying weeds.
    • the tilling of land without sowing it for a season
    verb
    fal​lowed; fal​low​ing; fal​lows

    Definition (Entry 3 of 4)

    • transitive ​verb
    • to plow, harrow, and break up (land) without seeding to destroy weeds and conserve soil moisture
    adjective (2)

    Definition (Entry 4 of 4)

    • left untilled or unsown after plowing
    • dormant, inactive —used especially in the phrase to lie fallow //… at this very moment there are probably important inventions lying fallowHarper's
    Other Words
    Adjective (2)
    • fal​low​ness noun
    Synonyms & Antonyms
    Synonyms: Adjective (2)
    dead dormant free idle inactive inert inoperative latent off unused vacant
    Antonyms: Adjective (2)
    active alive busy employed functioning going living on operating operative running working
    Examples
    Adjective (2)
    • //the coal mine has been lying fallow since the drop in prices made it unprofitable
    First Known Use
    Adjective (1)
    before 12th century, in the meaning defined above
    Noun
    before 12th century, in the meaning defined at sense 2
    Verb
    before 12th century, in the meaning defined above
    Adjective (2)
    14th century, in the meaning defined at sense 1
    History and Etymology
    Adjective (1)
    Middle English falwe, falew, falow "sallow, dusky, faded, yellow tending toward red or brown (of a horse)," going back to Old English fealu "yellow tending toward red, brown or gray (though in some contexts less clear)," going back to Germanic *falwa- (whence also Old Saxon falu "pale, dun, yellowish," Old High German falo "yellowish, tending toward red, brown, or gold," Old Icelandic fǫlr "pale"), going back to dialectal Indo-European *pol-u̯o-, whence also Old Church Slavic plavŭ "golden (of a ripe field of grain)," Russian polóvyj, polovój "pale yellow" (of horses or dogs), Polish płowy "fair, flaxen," Bosnian-Croatian-Serbian plâv "blue, light-colored (of hair), blond," Lithuanian pal͂vas "pale, pale yellow," Latvian pal͂ss; perhaps from the same base, with varying ablaut and suffixation: Latin pall- in pallēre "to be pale or bloodless, have a pale color," pallidus "pale, colorless," pallor "paleness of complexion, loss of color" (< *palu̯o-?); Latin pullus "drab-colored, dingy, somber" (< *polu̯o-
    taint — MW · Shobdo