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Molecule   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

... blood. He was strangely secret. The whole world must be abolished. He maddened her with his soft, cajoling, vibrating tones. He wanted her to answer, to understand. A turgid, teeming night, heavy with fecundity in which every molecule of matter grew big with increase, secretly urgent with fecund desire, seemed to come to pass. She quivered, taut and vibrating, almost pained. And gradually, he ceased telling her of Africa, there came a silence, whilst they walked the darkness beside ...
— The Rainbow • D. H. (David Herbert) Lawrence

... into the structure of material things, we should not see the atoms put evenly together as bricks are in a wall. As a rule, two or more atoms first come together to form a larger particle, which we call a "molecule." Single atoms do not, as a rule, exist apart from other atoms; if a molecule is broken up, the individual atoms seek to unite with other atoms of another kind or amongst themselves. For example, three atoms of oxygen form what we call ozone; two atoms of hydrogen ...
— The Outline of Science, Vol. 1 (of 4) - A Plain Story Simply Told • J. Arthur Thomson

... the molecule of time that intervened between the sudden stopping of the propeller and the moment that they reached the proximity of the ground that a whole lifetime flashed in front of Peggy. "Is this the end?" she caught ...
— The Girl Aviators on Golden Wings • Margaret Burnham

... Average Young Woman on a Job; she thought in terms of money and offices; yet she was one with all the men and women, young and old, who were creating a new age. She was nothing in herself, yet as the molecule of water belongs to the ocean, so Una Golden humbly belonged to the leaven who, however confusedly, were beginning to demand, "Why, since we have machinery, science, courage, need we go on tolerating war and poverty and caste and uncouthness, and ...
— The Job - An American Novel • Sinclair Lewis

... female is apt to be encumbered with luggage and scruples: to take up a good deal of room in the present and overlap inconveniently into the future; whereas an idea can accommodate itself to a single molecule of the brain or expand to the circumference of the horizon. The Professor's companion had to the utmost this quality of adaptability. As the express train whirled him away from the somewhat inelastic circle of Mrs. Linyard's affections, ...
— The Descent of Man and Other Stories • Edith Wharton

... isolating it from the cells with success. In the presence of air this ferment oxidizes sugar by bringing oxygen to bear upon it; in the absence of air it decomposes the sugar by taking away oxygen from one group of atoms of the molecule of sugar and bringing it to act upon other atoms; on the one hand yielding a product of alcohol by reduction, on the other hand a product of carbonic acid gas ...
— The Harvard Classics Volume 38 - Scientific Papers (Physiology, Medicine, Surgery, Geology) • Various



Words linked to "Molecule" :   mote, physics, macromolecule, corpuscle, chemistry, coenzyme, chylomicron, EDTA, chemical group, supermolecule, molecular, radical, particle, material, chemical science, building block, flyspeck, atom, ethylenediaminetetraacetic acid, identification particle



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