Dictionary

hapten

noun hap·ten \ˈhap-ˌten\

Definition of HAPTEN

:  a small separable part of an antigen that reacts specifically with an antibody but is incapable of stimulating antibody production except in combination with a carrier protein molecule
hap·ten·ic \hap-ˈte-nik\ adjective

Origin of HAPTEN

German, from Greek haptein to fasten
First Known Use: 1921

hapten

noun hap·ten \ˈhap-ˌten\   (Medical Dictionary)

Medical Definition of HAPTEN

:  a small separable part of an antigen that reacts specifically with an antibody but is incapable of stimulating antibody production except in combination with an associated protein molecule
hap·ten·ic \hap-ˈten-ik\ adjective
hap·ten·at·ed \ˈhap-tə-ˌnāt-əd\ adjective

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