'Pterylae' definitions:
Definition of 'Pterylae'
From: GCIDE
- Pteryla \Pte*ry"la\, n.; pl. Pteryl[ae]. [NL., fr. Gr. ? feather + ? wood, forest.] (Zool.) One of the definite areas of the skin of a bird on which feathers grow; -- contrasted with apteria. [1913 Webster]