upperwing en · NOUN
Etymology
From upper + wing.
Meanings
-
The upper part of a wing of a bird or butterfly
The original article (which see) mentions that the primary shafts on the upperwings lacked any whitish coloration.
2015, Bob Flood, Ashley Fisher, Martin Elliott, Pterodroma Petrels: North Atlantic Seabirds:
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| upperwings | Number=Plur | lexicographic |