hapten(redirected from incomplete antigen)
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hap·ten(hăp′tĕn′) also hap·tene (-tēn′)
A small molecule that reacts with a specific antibody but does not induce an immune response unless bound to a larger molecule, usually a protein.
[German : Greek haptein, to fasten + German -en, noun suffix (from Greek -ēnē, -ene).]
(Physiology) immunol an incomplete antigen that can stimulate antibody production only when it is chemically combined with a particular protein
[C20: from German, from Greek haptein to fasten]
a substance that reacts with antibodies but cannot by itself stimulate more antibodies; a partial antigen.
[1920–25; < German < Greek hápt(ein) to grasp + German -en -ene]