Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun 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.
- noun 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.
from The Century Dictionary.
- noun In chem., a compound that exhibits the properties of isomerism with reference to some other compound. Also
isomeride .
from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem.) A compound which is isomeric with another body or compound; a compound having the same chemical composition as another compound; a member of an isomeric series.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun chemistry Any of two or more
compounds with the samemolecular formula but with differentstructure . - noun physics Any of two or more
atomic nuclei with the samemass number andatomic number but with differentradioactive properties.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a compound that exists in forms having different arrangements of atoms but the same molecular weight
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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However, the trans-10 cis-12 CLA isomer alone is known to have some adverse effects, such as, fatty liver formation, insulin resistance, etc. which can be corrected by combining with the cis-9 trans-11 CLA isomer, which is known to improve insulin sensitivity as well as fatty liver formation, "wrote the researchers.
NutraIngredients RSS 2009
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Because all amino acids except glycine are chiral, biosynthetic pathways must generate the correct isomer with high fidelity.
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Chemet® (succimer) contains the stable meso isomer of dimercaptosuccinic acid which has also been known as DMSA.
Succimer 2010
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Sometimes her brains get a little too big for her Bible: On '' Mary Jane, '' she fails to find a rhyme for '' tetrahydrocannabinol pure isomer dronabinol. ''
Tori Amos - Undented 2009
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To get any kind of explosion, start with the hafnium isomer 178m2.
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Each molecule blend, each dimer and isomer, will have different properties.
The Volokh Conspiracy » A Step Toward Sanity on Medical Marijuana 2009
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An isomer is an atomic isotope already charged with energy.
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So storing energy in a hafnium isomer is one thing.
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B fork the deterministic isomer generator back to the CDK
Things to do... Egon Willighagen 2009
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The octane isomer has a good ability to resist premature detonation of an air fuel mix.
Knock Knock James Killus 2008
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