fertilizinn.
/fəːˈtɪlɪzɪn//fəːtɪˈlʌɪzɪn/ Zoology.
Any of a class of substances released into the surrounding water by the eggs of some aquatic animals and agglutinating sperm, usually only that of the same species.
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fertilizin1919
1919 F. R. Lillie Probl. Fertilization i. 27 The fertilizable condition of the egg depends upon the presence of a specific substance... This substance may therefore be called the fertilizing substance, or fertilizin... It is..a colloidal substance,..exhibiting some of the properties of a ferment.
1940 Chambers's Techn. Dict. 328/2 Fertilisin, a substance which is present in the cortex of an ovum and assists in the activation of the ovum.
1960 L. Picken Organization of Cells viii. 339 Even among echinoids, however, agglutination is not universal, though there is reason to suppose that a fertilizin is none the less secreted.
This entry has not yet been fully updated (first published 1972; most recently modified version published online December 2020).
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