Definition of nuclein in US English:

nuclein

(also nucleïn)

noun

Biochemistry
  • 1Originally: protein that is rich in phosphorus, especially nucleoprotein or phosphoprotein. Later: specifically nucleohistone or nucleoprotamine.

  • 2= nuclein base. rare. disused.

Origin

Late 19th century; earliest use found in Journal of the Chemical Society. From German Nuclein from Nucleus (now usually Nukleus) nucleus + -in.

Pronunciation

nuclein

/ˈnjuːklɪɪn/