D defs.my
Entry 1 sense Webster, 1913

Pterylography

· Pter·y·log·ra·phy · IPA
01 n. The study or description of the arrangement of feathers, or of the pterylæ, of birds.
  1. 1.
    The study or description of the arrangement of feathers, or of the pterylæ, of birds.(Zool.)