[ tahy-uh-lin ]
/ ˈtaɪ ə lɪn /

noun Biochemistry.

an enzyme in the saliva that converts starch into dextrin and maltose.

Nearby words

  1. ptui,
  2. ptv,
  3. pty,
  4. ptyalagogue,
  5. ptyalectasis,
  6. ptyalism,
  7. ptyalo-,
  8. ptyalocele,
  9. pu,
  10. pu yi

Origin of ptyalin

1835–45; < Greek ptýal(on) spittle, saliva + -in2

Also called salivary amylase.

salivary amylase

noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for salivary amylase


/ (ˈtaɪəlɪn) /


biochem an amylase secreted in the saliva of man and other animals

Word Origin for ptyalin

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

Medicine definitions for salivary amylase


[ tīə-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.

Science definitions for salivary amylase


[ tīə-lĭn ]

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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.