[ (eye-suh-muhrz) ]
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In chemistry, molecules that contain exactly the same numbers of the same kinds of atoms, but in which the atoms have different structural arrangements.
THINGAMABOB OR THINGUMMY: CAN YOU DISTINGUISH BETWEEN THE US AND UK TERMS IN THIS QUIZ?
Do you know the difference between everyday US and UK terminology? Test yourself with this quiz on words that differ across the Atlantic.
Question 1 of 7
In the UK, COTTON CANDY is more commonly known as…
Words nearby isomers
isomerase, isomeric, isomerism, isomerize, isomerous, isomers, isometric, isometric exercise, isometrics, isometropia, isometry
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
How to use isomers in a sentence
They're called d- and l-isomers—d for dextro, l for levo; right and left, you see.A Feast of Demons|William Morrison
Here we have assumed the substituent groups to be alike; when they are unlike, a greater number of isomers is possible.
In the case of tetra-substituted compounds, thirty isomers are possible when all the groups are different.
The next members are the isomers anthracene and phenanthrene, C14H10, formed from three benzene nuclei.
A factor of considerable importance in determining boiling-points of isomers is the symmetry of the molecule.