What Does the Word Atom Mean in Science
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noun
Physics.
- the smallest component of an element having the chemical properties of the element, consisting of a nucleus containing combinations of neutrons and protons and one or more electrons bound to the nucleus by electrical attraction; the number of protons determines the identity of the element.
- an atom with one of the electrons replaced by some other particle: muonic atom; kaonic atom.
Energy. this component as the source of nuclear energy.
a hypothetical particle of matter so minute as to admit of no division.
anything extremely small; a minute quantity.
QUIZ
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Origin of atom
1350–1400; Middle English attomos, athomus<Latin atomus<Greek átomos, noun use of átomos undivided, equivalent to a-a-6 + tomós divided, verbid of témnein to cut
Words nearby atom
at. no., ATO, at odds, A to J, atoll, atom, atom-bomb, atomic, atomic age, atomic bomb, atomic clock
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
How to use atom in a sentence
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The atoms vibrate less, and because such vibrations are simply heat, the alloy's temperature drops.
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Einstein used Brownian motion to deduce the existence of atoms, which bombard the microscopic particles.
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It is really fascinating that atoms and quarks, following very different rules, can both form very similar complex objects.
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Lenz noted that if most atoms pointed together, their tiny magnetic fields would fuse, and the material would act like a magnet overall.
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A negatively charged oxygen atom sits at the bottom of that "V," explains Xia.
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Check: "This atom smashing business is going to herald the final victory of the machine."
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They found that there are roughly 1,900 hydrogen atoms for each deuterium atom in the water on Comet 67P.
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Releasing a new issue was like dropping an atom bomb on the industry.
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You have the atom, which has the neutron, the electron, the proton.
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A face in a sea of faces, how could you know he hid among them like Oppenheimer, building a lab to split the atom.
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Standing in the wet shingle, Maynard regarded the speckled atom as it lay in the palm of his hand.
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Such an atom would by the rotation of the sphere accomplish no motion except, indeed, that it might turn round on its own centre.
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She had a governess and she had a maid, but I must say she didn't seem an atom set up, and was just as nice when she met us girls.
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The loss of one electron by an atom leaves a unit positive charge on the particle.
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The smallest atom, when she chooses to make use of it, is obliged to obey her will.
British Dictionary definitions for atom
noun
- the smallest quantity of an element that can take part in a chemical reaction
- this entity as a source of nuclear energy the power of the atom See also atomic structure
any entity regarded as the indivisible building block of a theory
the hypothetical indivisible particle of matter postulated by certain ancient philosophers as the fundamental constituent of matter See also atomism
a very small amount or quantity; minute fragment to smash something to atoms; there is not an atom of truth in his allegations
Word Origin for atom
C16: via Old French and Latin, from Greek atomos (n), from atomos (adj) that cannot be divided, from a- 1 + temnein to cut
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
Medical definitions for atom
n.
A unit of matter, the smallest unit of an element, having all the characteristics of that element and consisting of a dense, central, positively charged nucleus surrounded by a system of electrons. The entire structure has an approximate diameter of 10-8 centimeter and characteristically remains undivided in chemical reactions except for limited removal, transfer, or exchange of certain electrons.
This unit regarded as a source of nuclear energy.
A part or particle considered to be an irreducible constituent of a specified system.
The irreducible, indestructible material unit postulated by ancient atomism.
An extremely small part, quantity, or amount.
Other words from atom
a•tom′ic (ə-tŏm′ĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for atom
The smallest unit of an element, consisting of at least one proton and (for all elements except hydrogen) one or more neutrons in a dense central nucleus, surrounded by one or more shells of electrons. In electrically neutral atoms, the number of protons equals the number of electrons. Atoms remain intact in chemical reactions except for the removal, transfer, or exchange of certain electrons. Compare compound. See also ion isotope orbital.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for atom
notes for atom
Atoms link together to form molecules.
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.
What Does the Word Atom Mean in Science
Source: https://www.dictionary.com/browse/atom
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