Bot. [mod.Lat., ad. Gr. κυψέλη hollow vessel, chest, box.] A kind of dry one-seeded fruit; an achene with an adnate calyx, as in the Compositæ.
1870. Bentley, Bot., 313. The Cypsela … differs in nothing essential from the achænium, except in being inferior and of a compound nature.
1880. Gray, Struct. Bot., vii. § 2. 295. An akene with adnate calyx has been termed a Cypsela.
