Definition of Hypoptilum. Meaning of Hypoptilum. Synonyms of Hypoptilum

Here you will find one or more explanations in English for the word Hypoptilum. Also in the bottom left of the page several parts of wikipedia pages related to the word Hypoptilum and, of course, Hypoptilum synonyms and on the right images related to the word Hypoptilum.

Definition of Hypoptilum

Hypoptilum Hy*pop"ti*lum, n.; pl. L. Hypoptila, E. Hypoptilums. [NL., fr. Gr. "ypo` beneath + ? down.] (Zo["o]l.) 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.

Meaning of Hypoptilum from wikipedia