alula

play
noun al·u·la \ˈal-yə-lə\

Definition of alula

plural

alulae

play \-ˌlē, -ˌlī\
  1. :  the process of a bird's wing corresponding to the thumb and bearing a few short quills —called also bastard wing

Origin and Etymology of alula

New Latin, from Latin, diminutive of ala wing — more at aisle


First Known Use: 1772


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a dividing ridge between drainage areas

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