Definition of neotenin in US English:

neotenin

noun

Entomology
  • Juvenile hormone.

Origin

1950s; earliest use found in Vincent Brian Wigglesworth (1899–1994), entomologist. Probably from neoteny + -in.

Pronunciation

neotenin

/ˌniːə(ʊ)ˈtɛnɪn/