alula
1. [ noun ] (zoology) scale-like structure between the base of the wing and the halter of a two-winged fly
Synonyms: calypter
Related terms: squama fly
2. [ noun ] (zoology) tuft of small stiff feathers on the first digit of a bird's wing
Synonyms: spurious_wing bastard_wing
Related terms: feather wing
Similar spelling:   alalia
  allyl
  allele
  alleluia