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[tahy-uh-lin] /ˈtaɪ ə lɪn/
noun, Biochemistry.
an enzyme in the saliva that converts starch into dextrin and maltose.
Also called salivary amylase.
Origin of ptyalin
1835-45; < Greek ptýal(on) spittle, saliva + -in2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for ptyalin


(biochem) an amylase secreted in the saliva of man and other animals
Word Origin
C19: from Greek ptualon saliva, from ptuein to spit
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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ptyalin in Medicine

ptyalin pty·a·lin (tī'ə-lĭn)
An amylase present in saliva that catalyzes the hydrolysis of starch into maltose and dextrin.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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ptyalin in Science
An enzyme found in the saliva of humans and herbivorous animals that helps in the predigestion of starches. Ptyalin is a type of amylase.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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