1.n. pl. A Linnæan class of plants, having twenty or more stamens inserted in the calyx.
Medical Definition of Icosandria
1. A Linnaean class of plants, having twenty or more stamens inserted in the calyx.
Origin: NL, fr. Gr. Twenty +, man, male: cf. F. Icosandrie.
Source: Websters Dictionary
(01 Mar 1998)