• synonyms


  1. a combining form meaning “wet,” “moist,” “moisture,” used in the formation of compound words: hygrometer.
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Origin of hygro-

< Greek, combining form of hygrós wet, moist
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for hygro-


before a vowel hygr-

combining form
  1. indicating moisturehygrometer
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Word Origin

from Greek hugros wet
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

Word Origin and History for hygro-

word-forming element meaning "wet, moist, moisture," from Greek hygro-, comb. form of hygros "wet, moist, fluid," from PIE root *wegw- "wet."

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Online Etymology Dictionary, © 2010 Douglas Harper

hygro- in Medicine


  1. Moisture; liquid; humidity:hygroscopic.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.