molecule
Chemistry, Physics. the smallest physical unit of an element or compound, consisting of one or more like atoms in an element and two or more different atoms in a compound.
Chemistry. a quantity of a substance, the weight of which, measured in any chosen unit, is numerically equal to the molecular weight; gram molecule.
any very small particle.
Origin of molecule
1Other words from molecule
- sub·mol·e·cule, noun
- su·per·mol·e·cule, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use molecule in a sentence
The others are difficult to identify, since they reacted with other oxygen-bearing molecules in the soil.
Their decay proceeded without a ready supply of oxygen, producing hydrocarbons like methane instead of oxygen-bearing molecules.
The key family of molecules that lead many to look to fish oil as a brain booster are the omega-3 fatty acids.
Fish Oil, Turmeric, and Ginseng, Oh My! Are ‘Brain Foods’ B.S.? | Dr. Anand Veeravagu, MD | October 10, 2014 | THE DAILY BEASTThat means that your body is primed to breakdown molecules for energy.
She can reorganize her own molecules, make computers with her brain, talk to dinosaurs.
Take up a heavy iron cannon-ball: this ball is composed of invisible molecules which do not touch each other.
Urania | Camille FlammarionWhat becomes of the invisible and intangible molecules which have composed our body during life?
Urania | Camille FlammarionThe more concentrated the solution, the more frequent the collisions between the dissolved molecules must be.
The Elements of Qualitative Chemical Analysis, vol. 1, parts 1 and 2. | Julius StieglitzThis result agrees with the conception that two molecules of ammonia combine with one silver ion to form a complex ion.
The Elements of Qualitative Chemical Analysis, vol. 1, parts 1 and 2. | Julius StieglitzOn the other hand, total division must imply mutual destruction (because their molecules would lose all magnitude whatever).
Plotinos: Complete Works, v. 3 | Plotinos (Plotinus)
British Dictionary definitions for molecule
/ (ˈmɒlɪˌkjuːl) /
the simplest unit of a chemical compound that can exist, consisting of two or more atoms held together by chemical bonds
a very small particle
Origin of molecule
1Collins 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 molecule
[ mŏl′ĭ-kyōōl′ ]
A group of two or more atoms linked together by sharing electrons in a chemical bond. Molecules are the fundamental components of chemical compounds and are the smallest part of a compound that can participate in a chemical reaction.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for molecule
[ (mol-uh-kyoohl) ]
A combination of two or more atoms held together by a force between them. (See covalent bond and ionic bond.)
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.
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