noun Pathology.
excessive secretion of saliva.

1675–85; < Greek ptyalismós expectoration, equivalent to ptýal(on) spittle + -ismos -ism Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
ptyalism (ˈtaɪəˌlɪzəm)
excessive secretion of saliva
[C17: from Greek ptualismos, from ptualizein to produce saliva, from ptualon saliva]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

ptyalism pty·a·lism (tī'ə-lĭz'əm)
Excessive flow of saliva. Also called hypersalivation, salivation, sialism, sialismus, sialorrhea, sialosis.

The American Heritage® Stedman's Medical Dictionary
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