Cyma /(sī"mȧ)/

Cy·ma

Cyma

n.
  1. A member or molding of the cornice, the profile of which is wavelike in form. (Arch.)
  2. A cyme. See Cyme. (Bot.)

Phrases & Compounds
Cyma recta
a cyma, hollow in its upper part and swelling below.
Cyma reversa
a cyma swelling out on the upper part and hollow below.