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ptyalin n. 唾液淀粉酶 唾液淀粉□ ptyalin n 1: an amylase secreted in saliva ptyalin \pty"a*lin\ (t[imac]"[.a]*l[i^]n), n. [Gr. pty`alon
spittle. See {Ptyalism}.] (Physiol. Chem.) An unorganized amylolytic ferment, on enzyme, present in human mixed saliva and in the saliva of some animals. [1913 Webster]
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