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a combining form used in the names of devices that stabilize or make constant what is specified by the initial element:
thermostat; rheostat.
< Greek -statēs, equivalent to sta- (stem of histánai to make stand; see stand) + -tēs agent noun suffix Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for -stat


combining form
indicating a device that causes something to remain stationary or constant thermostat
Word Origin
from Greek -statēs, from histanai to cause to stand
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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-stat in Medicine

-stat suff.

  1. Something that stabilizes: barostat.

  2. Something that inhibits: hemostat.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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