Definition of haptine in English:

haptine

(also haptin)

noun

Immunology
rare, historical
  • In the terminology of Paul Ehrlich: any substance which occurs naturally in body fluids and contains a haptophore; a free side chain or receptor.

Origin

Early 20th century. From German Haptin from ancient Greek ἅπτειν to fasten + German -in.

Pronunciation

haptine

/ˈhaptɪn/