AFTERSHAFT
\ˈaftəʃˌaft], \ˈaftəʃˌaft], \ˈa_f_t_ə_ʃ_ˌa_f_t]\
Sort: Oldest first
-
A small tuft of down in the neighbourhood of the superior umbilicus in the feathers of most birds; in certain birds (e. g. moas, emu, cassowary) a second vane, which, usually shorter, but sometimes of equal length to the vane proper, arises near the superior umbilicus.
By Henderson, I. F.; Henderson, W. D.
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.