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Molecule   /mˈɑləkjˌul/   Listen
noun
Molecule  n.  
1.
One of the very small invisible particles of which all ordinary matter is supposed to consist.
2.
(Physics) The smallest part of any substance which possesses the characteristic properties and qualities of that substance, and which can exist alone in a free state.
3.
(Chem.) A group of atoms so united and combined by chemical affinity that they form a complete, integrated whole, being the smallest portion of any particular compound that can exist in a free state; as, a molecule of water consists of two atoms of hydrogen and one of oxygen. Cf. Atom.






Collaborative International Dictionary of English 0.48








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"Molecule" Quotes from Famous Books



... being self-existent, must in her essence possess motion; which cannot be conceived without properties, from which result perpetual action and re- action; or those continual efforts which give birth to such a numerous train of circumstances; in which a single molecule cannot be found, that does not necessarily occupy the place assigned to it, by immutable and necessary laws—that is for an instant in an absolute state of repose. What necessity can there exist to seek ...
— The System of Nature, Vol. 2 • Baron D'Holbach

... sand that was fine-grained and smooth, not wrinkled like beach sand, which preserves the impressions left by the waves. This dazzling carpet was a real mirror, throwing back the sun's rays with startling intensity. The outcome: an immense vista of reflections that penetrated every liquid molecule. Will anyone believe me if I assert that at this thirty-foot depth, I could see as ...
— 20000 Leagues Under the Seas • Jules Verne

... no doubt that solution is, in many cases, attended by chemical processes, still we possess as yet no means of deciding, with certainty, how many molecules of water have bound themselves to a single molecule of the dissolved substance (solute). On the other hand, we possess exact methods of testing whether gases or solutes in dilute solution react one with another and of determining the equilibrium state ...
— Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 - "Chtelet" to "Chicago" • Various

... of a, I suppose, is combined with several particles of b, it seems to me that this molecule ought to be divided into as many particles; but, if it is divided, it ceases to be unity, the primordial molecule. In short, ...
— Bouvard and Pecuchet - A Tragi-comic Novel of Bourgeois Life • Gustave Flaubert

... weapons so fine that only the microscope can fully reveal them to us. The animal world seizes its food in masses little and big, and often gorges itself with it, but the vegetable, through the agency of the solvent power of water, absorbs its nourishment molecule by molecule. ...
— Under the Maples • John Burroughs


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