Definition of psilopaedic in US English:

psilopaedic

(also psilopedic)

adjective

Ornithology
rare
  • Of a bird: hatched without a covering of down. Contrasted with ptilopaedic.

Origin

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

Pronunciation

psilopaedic

/ˌsʌɪlə(ʊ)ˈpiːdɪk/