Английский Язык - Английский Язык
Определение hypoptilum в Английский Язык Английский Язык словарь
- An accessory plume arising from the posterior of the contour feathers of many birds
- An accessory plume arising from the posterior side of the stem of the contour feathers of many birds; called also aftershaft
- of Feather
- The hypoptilum
- aftershaft