a. [f. CYATH-US + -(I)FORM: cf. F. cyathiforme.] Shaped like a cup a little widened at the top. (Chiefly in Bot.).
1776. J. Lee, Introd. Bot., 245. Ciathiform, shaped like a Drinking-Glass.
1794. Martyn, Rousseaus Bot., xxii. 316. Bignonia has a cyathiform calyx, narrow at bottom and spreading wide at top.
1835. Penny Cycl., III. 535/2. They [Doric pillars] are fluted and tapering, with a large cyathiform capital.
1846. Dana, Zooph. (1848), 140. When fully expanded, the disk is cyathiform.