haptophorousadj.
/hapˈtɒf(ə)rəs/, U.S. /ˌhæpˈtɑf(ə)rəs/ Immunology and Pharmacology. Now historical and rare.
= haptophoric adj.
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haptophorous1898
haptophore1899
haptophoric1900
zymophore1900
zymophoric1902
1898 Philadelphia Med. Jrnl. 2 1009/2 The haptophorous group is responsible for the combination of the toxin-molecule with the cells.
1922 R. L. Pitfield Compend Bacteriol. (ed. 4) iv. 57 A great number of free receptors are generated, and..engage the haptophorous portion of the toxin.
1944 Jrnl. Allergy 15 406 One might destroy the histamine activity by blocking either its toxophorous or its haptophorous function.
1999 J. Drews In Quest Tomorrow's Drugs 66 We have to thank Paul Ehrlich for the theoretical foundations of chemotherapy: the idea of selective binding of dyes and drugs on chemoreceptors, the concept of binding (haptophorous) and toxic (toxophorous) groups on the drug molecule, [etc.].
This entry has been updated (OED Third Edition, December 2013; most recently modified version published online March 2022).
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adj.1898