[oz-moh-reg-yuh-ley-shuh n, os-]

Origin of osmoregulation

First recorded in 1930–35; osmo- + regulation
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for osmoregulation


  1. zoology the adjustment of the osmotic pressure of a cell or organism in relation to the surrounding fluid
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

osmoregulation in Medicine


[ŏz′mə-rĕg′yə-lāshən, ŏs′-]
  1. The maintenance of an optimal constant osmotic pressure in the body of a living organism.
Related formsos′mo•regu•la•to′ry (-lə-tôr′ē) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.