English▸ adjective
1 [attributive] done, produced, or occurring once every quarter of a year:
a quarterly newsletter is distributed to members.
2 Heraldry (of a shield or charge) divided into four (or occasionally more) subdivisions by vertical and horizontal lines.
▸ adverb
2 Heraldry in the four, or in two diagonally opposite, quarters of a shield.
[on the pattern of Old French quartile.]
▸ noun
(plural quarterlies)
a magazine or journal that is published four times a year.