laciniateEnglishOxford New American Dictionarylaciniate /ləˈsinēāt, ləˈsɪnieɪt / (also laciniated /-ˌātid/) ▸ adjective Botany & Zoology divided into deep narrow irregular segments. – DERIVATIVES laciniation – ORIGIN mid 18th century : from Latin lacinia ‘fringe, hem, flap of a garment’ + -ate2.