Definition of ptilopaedic in English:

ptilopaedic

(also ptilopedic)

Pronunciation /ˌtʌɪlə(ʊ)ˈpiːdɪk/

adjective

rare Ornithology
  • Of a bird: hatched with a complete covering of down. Contrasted with psilopaedic.

Origin

Late 19th century; earliest use found in Elliott Coues (1842–1889), naturalist and historian. From ptilo- + ancient Greek παιδ-, παῖς child + -ic, after scientific Latin ptilopaedes.