Pronunciation: (sī'mu), [key]
—pl. -maePronunciation: (-mē), [key] -mas.
1. Archit.either of two moldings having a partly convex and partly concave curve for an outline: used esp. in classical architecture. Cf. cyma recta, cyma reversa.
2. Bot.a cyme.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.