[1] : The Collaborative International Dictionary of English v.0.48

ala \a"la\ =a"l.a, n.; pl. alae =a"l=e. l., a
   wing. biol.
   a winglike organ, or part.
   1913 webster
see also:
alae 

[2] : WordNet (r) 2.0

ala
     n 1: a flat wing-shaped process or winglike part of an organism;
          "the alae of the nose"; "the alae of a maple seed"; "the
          flat petals of a pea blossom are alae"
     2: a wing of an insect
     also: alae pl
see also:
alae 

A-La >> A Words
A-La, definition of term: A-La
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