Chemistry. a compound displaying isomerism with one or more other compounds.
Also called nuclear isomer. Physics. a nuclide that exhibits isomerism with one or more other nuclides.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use isomer in a sentence
In the new analysis, the researchers measured more than a dozen other life-related compounds, including isomers of the nucleobases, Glavin says.All of the bases in DNA and RNA have now been found in meteorites | Liz Kruesi | April 26, 2022 | Science News
If there had been contamination from the soil, we should have seen those isomers in the soil as well.All of the bases in DNA and RNA have now been found in meteorites | Liz Kruesi | April 26, 2022 | Science News
The law creates a new class of “adult-use cannabis” products for anything that contains THC, its isomers, or “any artificially derived cannabinoid that is reasonably determined to have an intoxicating effect.”How Mitch McConnell Accidentally Created An Unregulated THC Market | Lester Black | October 18, 2021 | FiveThirtyEight
Congress appeared to legalize all of these other compounds by including “all derivatives, extracts, cannabinoids, isomers, acids, salts, and salts of isomers” in their definition of hemp.How Mitch McConnell Accidentally Created An Unregulated THC Market | Lester Black | October 18, 2021 | FiveThirtyEight
Sometimes either form was digestible, but frequently the body could use only the isomer to which it was adjusted.Badge of Infamy | Lester del Rey
According to this view hyoscyamine ought to be the hyoscinate of hyoscine, or at any rate an isomer of this body.
An isomer of chloral, parachloralide, is made by passing excess of dry chlorine into absolute methyl alcohol.
Besides this oil, cloves also contain two neutral bodies, eugenin and caryophyllin, the latter of which is an isomer of camphor.
Chavibetol, an isomer of eugenol, occurs in the ethereal oil obtained from Piper betle.
British Dictionary definitions for isomer
chem a compound that exhibits isomerism with one or more other compounds
physics a nuclide that exhibits isomerism with one or more other nuclides
- isomeric (ˌaɪsəˈmɛrɪk), adjective
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
Scientific definitions for isomer
Chemistry Any of two or more substances that have the same molecular formula but differ in their connectivity or spatial arrangement of atoms, or in their topology in macromolecules.
Physics Any of two or more nuclei with the same mass number and atomic number that have different radioactive properties and can exist in any of several energy states for a measurable period of time.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.