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alula

/ˈæljələ/
IPA guide

Other forms: alulae

Definitions of alula
  1. noun
    tuft of small stiff feathers on the first digit of a bird's wing
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    type of:
    feather, plumage, plume
    the light horny waterproof structure forming the external covering of birds
  2. noun
    scalelike structure between the base of the wing and the halter of a two-winged fly
    synonyms: calypter
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    type of:
    squama
    a protective structure resembling a scale
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