Definition of nucleolinus in US English:

nucleolinus

noun

Biology
  • A small, densely fibrillar body in a nucleolus..

Origin

Mid 19th century; earliest use found in Nature: a weekly journal of science. From post-classical Latin nucleolinus from nucleolus + -inus.

Pronunciation

nucleolinus

/njuːklɪəˈlʌɪnəs/