Dictionary.com
definitions
  • synonyms

isothermal

or i·so·ther·mic

[ahy-suh-thur-muh l]
See more synonyms for isothermal on Thesaurus.com
adjective
  1. occurring at constant temperature.
  2. pertaining to an isotherm.
Show More
noun
  1. Meteorology. an isotherm.
Show More

Origin of isothermal

1820–30; < French isotherme isothermal (< Greek iso- iso- + thérmē heat) + -al1
Related formsi·so·ther·mal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for isothermal

Historical Examples

  • Has the isothermal line any relation to the number of millionaires?

    The Principles of Economics

    Frank A. Fetter

  • Reference is here invited to Humboldt's thermal and isothermal lines.

    Everyday Objects

    W. H. Davenport Adams

  • The isothermal solubility curves, also, have a similar form.

  • The other isothermal curves can be followed in a similar manner.

  • In this figure ak′b is an isothermal, ak″ is the curve for the binary system, and K is the ternary critical point.


British Dictionary definitions for isothermal

isothermal

adjective
  1. (of a process or change) taking place at constant temperature
  2. of or relating to an isotherm
Show More
noun
  1. another word for isotherm
Show More
Derived Formsisothermally, adverb
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 isothermal

1826 (adj.); 1852 (n.), from French isotherme (see isotherm) + -al (1).

Show More
Online Etymology Dictionary, © 2010 Douglas Harper

isothermal in Medicine

isothermal

(ī′sə-thûrməl)
adj.
  1. Of, relating to, or indicating equal or constant temperatures.
Show More
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

isothermal in Science

isothermal

[ī′sə-thûrməl]
  1. Relating to or indicating equal or constant temperatures.
  2. Relating to a process, usually changes of pressure and volume, occurring at a constant temperature and following Boyle's Law.
  3. Relating to an isotherm.
Show More
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.