Webster’s Revised Unabridged Dictionary · 1913
Cymbiform
Cym′bi·form (s?m′b?-f?rm),, a. [L. cymba boat (Gr. κύμβη) + -form: cf. F. cymbiforme.] Shaped like a boat; (Bot.) elongated and having the upper surface decidedly concave, as the glumes of many grasses.