“fertilizin”的英文意思_释义_用法

单词

fertilizin

释义

fertilizin Zool.|fɜːˈtɪlɪzɪn, fɜːtɪˈlaɪzɪn|
Also fertilisin.
[f. fertilize v. + -in¹.]
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.
1919F. 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.1940Chambers'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.1960L. 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.

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