Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to isothermal: isothermal compression, Isochoric


1. Of, relating to, or indicating equal or constant temperatures.
2. Of or designating changes of pressure and volume at constant temperature.
3. Of or relating to an isotherm.
An isotherm.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (General Physics) (of a process or change) taking place at constant temperature
2. (Physical Geography) of or relating to an isotherm
(Physical Geography) another word for isotherm
ˌisoˈthermally adv
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌaɪ səˈθɜr məl)

also i`so•ther′mic,

1. occurring at constant temperature.
2. pertaining to an isotherm.
[1820–30; < French isotherme isotherm]
i`so•ther′mal•ly, adv.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.isothermal - of a process or change taking place at constant temperature
equal - having the same quantity, value, or measure as another; "on equal terms"; "all men are equal before the law"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


[ˌaɪsəʊˈθɜːməl] ADJisotérmico
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
References in periodicals archive ?
Isothermal crystallization properties of polyamide 6/hexagonal boron nitride Nanocomposites.
Summary: The report features unique and salient factors that may have a huge impact on the development of the loop-mediated isothermal amplification market during the forecast period.
[USPRwire, Tue May 07 2019] MRRSE Research examines the global isothermal bags & containers market during the forecast period 2018-2026.
For analytical models, the Avrami and Avrami-Ozawa equations are applied extensively to fit the curve of crystallinity evolution during isothermal and nonisothermal crystallization experiment.
"Evolution of the Microstructure of Sn58Bi Solder Paste with Sn-3.0Ag-0.5Cu Addition During Isothermal Aging"
In this regard, several isothermal amplification methods for the rapid detection of UTIs have been developed such as Loop mediated isothermal Amplification method (LAMP) (1), Nucleic Acid Sequence Based Amplification (NASBA) (2), Self-sustained sequence replication (3SR), etc.
Such spaces generally remain almost under isothermal conditions due to relatively high flow rates of the supply air.
The three major types are diabatic OCAES, adiabatic OCAES, and isothermal OCAES.
To the Editor: We read an interesting paper entitled, “A Pilot Study of Quantitative Loop-mediated Isothermal Amplification-guided Target Therapies for Hospital-acquired Pneumonia” published in Chinese Medical Journal recently.[sup][1]