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/ˈæljuːlə/ · noun
(ornithology) A small projection of three or four feathers on the first digit of the wing on some birds..
More recently, the upturned wing tips of jet aircraft mimic the "fingers" of birds' terminal primary feathers, and the slotted leading edges of aircraft wings are directly copied from the alula ("thumb" wings) in birds.
On the wing, even the tiny “thumb feather” or alula can be seen.
Use alula when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Alula means (ornithology) A small projection of three or four feathers on the first digit of the wing on some birds..
Common synonyms include bastard wing, vulcan palm, cabbage on a stick, Brighamia insignis.
The opposite depends on the specific sense.
More recently, the upturned wing tips of jet aircraft mimic the "fingers" of birds' terminal primary feathers, and the slotted leading edges of aircraft wings are directly copied from the alula ("thumb" wings) in birds.
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