Not quite right?
"Search similar patterns."
A____
Definitions
tuft of small stiff feathers on the first digit of a bird's wing
Word origin
From Latin ala (“wing”) + English -ula.
Used in a sentence
“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.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer0 curated clues
No curated clues for alula yet.