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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



... molecule 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, I do ...
— Bouvard and Pecuchet - A Tragi-comic Novel of Bourgeois Life • Gustave Flaubert

... basis that one molecule of potassium permanganate will oxidize one and two-thirds molecules of ...
— Scientific American Supplement, No. 561, October 2, 1886 • Various

... when dissolved in water cannot be said even yet to be fully settled, and, although there can be 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 which is attained. For if ...
— Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 - "Chtelet" to "Chicago" • Various

... of which I am sure is, that the distinction between the organic and inorganic is arbitrary; that it is more coherent with our other ideas, and therefore more acceptable, to start with every molecule as a living thing, and then deduce death as the breaking up of an association or corporation, than to start with inanimate molecules and smuggle life into them; and that, therefore, what we call the inorganic world must be regarded as up to a certain point living, and instinct, ...
— Unconscious Memory • Samuel Butler

... parlance, the creature is the lover and the Creator the Beloved: worldly existence is Disunion, parting, severance; and the life to come is Reunion. The basis of the idea is the human soul being a divin particula aur, a disjoined molecule from the Great Spirit, imprisoned in a jail of flesh; and it is so far valuable that it has produced a grand and pathetic poetry; but Common Sense asks, Where is the proof? And Reason wants to know, What ...
— The Book of the Thousand Nights and a Night, Volume 5 • Richard F. Burton

... trifle less hypocrisy, a molecule extra of untruth, and flavor with this fault or that, and your man is ready to place up against the ...
— Little Journeys to the Homes of the Great, Vol. 1 of 14 - Little Journeys to the Homes of Good Men and Great • Elbert Hubbard

... carbon and hydrogen, that no black particles of carbon can get away unburnt. In the old-fashioned gunpowder the oxygen necessary for the combustion of the carbon and sulfur was in a separate package, in the molecule of potassium nitrate, and however finely the mixture was ground, some of the atoms, in the excitement of the explosion, failed to find their proper partners at the moment of dispersal. The new gunpowder besides being smokeless is ashless. ...
— Creative Chemistry - Descriptive of Recent Achievements in the Chemical Industries • Edwin E. Slosson

... so, of course, we'd have the one-man beetles and crewboats out, and the floodlights orbiting overhead, and Vesta would be as exposed to us as a molecule on a microscreen. Then work would start in earnest. But in the meantime—and as usual—Hargraves, Reiss and I were out prowling, our weighted boots clomping along in darkness. Captain Feldman had long ago ...
— Zen • Jerome Bixby

... flavor in peaches, and it could very easily make an off flavor in pecans. In tests before this on Meadow spittle bugs on crops which might be used for food they did not use BHC, which would be cheaper. There are four or five different forms of the molecule that are important in making that and this gamma is the most important. We used a pound of this 25% gamma lindane and that apparently was the most successful. I didn't get this idea out of a clear sky. I talked to Dr. G. C. ...
— Northern Nut Growers Association Report of the Proceedings at the Forty-Second Annual Meeting • Northern Nut Growers Association

... of heat by all bodies. When the molecules are combined into a mass, this interaction ceases, so that the lightest objects fly through the ether without resistance. Why is this? Why does ether act on the molecule and not the mass? When we can produce the latter, and when the mutual action can be controlled, then may gravitation be overcome and then may men build, not merely airships, but ships which shall fly above the air, and transport ...
— Side-lights on Astronomy and Kindred Fields of Popular Science • Simon Newcomb

... always composed of two or more atoms. An atom is smaller than a molecule, for this reason. Furthermore, an atom comprises only one substance. A molecule has two or more substances in its make-up. For instance, water is composed of two parts of hydrogen and one part of oxygen. One molecule of water, therefore, ...
— The Wonder Island Boys: Exploring the Island • Roger Thompson Finlay

... was only in South Square, Gray's Inn. Here I entered upon a hopeless search for the offices of Burroughs and Burroughs. Door after door had I tried in vain, and was beginning to realise my mistake, when a stray molecule of the population drifted in from Holborn as I had done, but with the quick step of the man who knows his way. I darted from a doorway to inquire mine, but he was across the square before I could cut him off, and as he passed ...
— Mr. Justice Raffles • E. W. Hornung

... are looking nigh. I take it on trust from the scientific people that there is then a quantity—almost to saturation—of aqueous vapor in the air, but it is aqueous vapor in a state which makes the air more transparent than it would be without it. What state of aqueous molecule is that, absolutely unreflective[12] of light—perfectly transmissive of light, and showing at once the color of blue water and blue air on ...
— The Storm-Cloud of the Nineteenth Century - Two Lectures delivered at the London Institution February - 4th and 11th, 1884 • John Ruskin

... quantities in America, Germany, France, Spain, Hungary, Norway, and Great Britain. According to Rose, apatite is made up of three molecules of tribasic calcium phosphate (Ca(PO4)2), combined with one molecule of calcium fluoride (Ca F2) or one molecule of calcium chloride ...
— Manures and the principles of manuring • Charles Morton Aikman

... affinity; and this is the only sense in which chemical affinity can be said to be converted into heat. We must not imagine the chemical attraction destroyed, or converted into anything else. For the atoms, when mutually clasped to form a molecule of water, are held together by the very attraction which first drew them towards each other. That which has really been expended is the pull exerted through the space by which the distance between the atoms ...
— Fragments of science, V. 1-2 • John Tyndall

... the historian interested in certain aspects of pre-Lavoisierian science. The temerity with which physical phenomena are referred to occult static molecules, permeated by subtle fluids, the whole mechanism left without dynamic quality, since the mass of the molecule is to be non-essential, is markedly in contrast with the discredit into which such hypotheses have now fallen. It is true that an explanation of natural phenomena in terms "le feu ethere, le feu calorique, et le feu fixe" might be interpreted ...
— Lamarck, the Founder of Evolution - His Life and Work • Alpheus Spring Packard

... one molecule of base requires one molecule of hydrochloric acid to form a salt of the base, a molecule of nitrite of soda, and another molecule of hydrochloric acid to decompose the nitrite. The diazotisation is ...
— The Dyeing of Cotton Fabrics - A Practical Handbook for the Dyer and Student • Franklin Beech

... expression "a mineral monad" authorized by the Adepts? If so, what relation does the monad bear to the atom, or the molecule, of ordinary scientific hypothesis? And does each mineral monad eventually become a vegetable monad, and then at last a human being? Turning now to some historical difficulties, we ...
— Five Years Of Theosophy • Various

... another molecule of atmosphere, "and that!" punching dent after dent in the viewless void ...
— Iole • Robert W. Chambers

... Science presents unfoldment, not accretion; it manifests no material growth from molecule to mind, but an impartation of the divine Mind to man 68:30 and the universe. Proportionately as human generation ceases, the unbroken links of eternal, har- monious being will be spiritually discerned; and man, 69:1 not of the earth earthly but coexistent with God, ...
— Science and Health With Key to the Scriptures • Mary Baker Eddy



Words linked to "Molecule" :   dipole molecule, ethylenediaminetetraacetic acid, speck, radical, group, supermolecule, stuff, particle, grinding, coenzyme, gram molecule, physics, identification particle, chemistry, chain, EDTA, building block, atom, grain, mote, long-chain molecule, chemical science, chemical group



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