Hypoptilum

Hy`pop´ti`lum


n. 1. (Zool.) An accessory plume arising from the posterior side of the stem of the contour feathers of many birds; - called also aftershaft. See Illust. of Feather.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
Mentioned in ?
Full browser ?