Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun alula

2 senses of alula

Sense 1
alula, calypter -- (scalelike structure between the base of the wing and the halter of a two-winged fly)
       => squama -- (a protective structure resembling a scale)

Sense 2
bastard wing, alula, spurious wing -- (tuft of small stiff feathers on the first digit of a bird's wing)
       => feather, plume, plumage -- (the light horny waterproof structure forming the external covering of birds)