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

Nearby words

  1. hygienics,
  2. hygienist,
  3. hyginus,
  4. hygric,
  5. hygristor,
  6. hygrogram,
  7. hygrograph,
  8. hygrology,
  9. hygroma,
  10. hygrometer

Origin of hygro-

< Greek, combining form of hygrós wet, moist

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

British Dictionary definitions for hygro-


before a vowel hygr-

combining form

indicating moisturehygrometer

Word Origin for hygro-

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."

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for hygro-



Moisture; liquid; humidity:hygroscopic.

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