单词 hapten 释义 hapten Immunol.|hptn|Also -ene.[ad. G. hapten (K. Landsteiner 1921, in Biochem. Zeitschr. CXIX. 303), f. Gr. ἅ to fasten.]A substance, usu. of low molecular weight, which cannot by itself elicit an antibody, but which can do so when com...