alula Meaning, Definition & Usage

  1. noun scalelike structure between the base of the wing and the halter of a two-winged fly
    calypter.
  2. noun tuft of small stiff feathers on the first digit of a bird's wing
    spurious wing; bastard wing.

WordNet

Al"u*la noun
Etymology
NL., dim. of L. ala a wing.
Definitions
  1. (Zoöl.) A false or bastard wing. See under Bastard.

Webster 1913