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of one or more substances into a distinct and definite compound of greater complexity and molecular weight, often resulting in an increase of density, as the condensation of oxygen into ozone, or of acetone into mesitylene. Condensation product (Chem.), a substance obtained by the polymerization of one substance, or by…

A minute particle; an atom; a molecule.

o form complex compounds. The name is also applied to the univalent radical, CN (the half molecule of cyanogen proper), which was one of the first compound radicals recognized.

A name given by Haüy to the successive diminution of the layers of molecules, applied to the faces of the primitive form, by which he supposed the secondary forms to be produced.

Lying down; prostrate; recumbent. The decumbent portraiture of a woman. Ashmole.

amphibious, insectivorous mammal found in Russia (Myogale moschata). It is allied to the moles, but is called muscrat by some English writers. [Written also dæsman.]

A compound containing in the molecule two atoms of hydrogen united with some other element or radical. [Obs.]

A compound containing in the molecule two atoms of oxygen united with some other element or radical; -- usually called dioxide, or less frequently, binoxide.

vorous marsupial of Tasmania (Dasyurus, or Diabolus, ursinus). -- To play devil with, to molest extremely; to ruin. [Low]

Having two atoms or equivalents of calcium to the molecule.

An oxide containing two atoms of oxygen in each molecule; binoxide.

A selenide containing two atoms of selenium in each molecule.

The process of separation, or the condition of being separate, as of the molecules of a body.

riction and resistances of other kinds are introduced without regard to the heat or other molecular actions which they generate; -- opposed to conservative system.

the action of heat on gaseous or volatile substances; as, the dissociation of the sulphur molecules; the dissociation of ammonium chloride into hydrochloric acid and ammonia.

A binary compound of sulphur containing two atoms of sulphur in each molecule; -- formerly called disulphuret. Cf. Bisulphide.

Applied to an acid having in each molecule two atoms of sulphur in the higher state of oxidation. Disulphuric acid, a thick oily liquid, H2S2O7, called also Nordhausen acid (from Nordhausen in the Harts, where it was originally manufactured), fuming sulphuric acid, and especially pyrosulphuric acid. See under Pyrosulph…

One of a series of complex nitrogenous substances regarded as containing two molecules of urea or their radicals, as uric acid or allantoin. Cf. Ureide.

es or basic radicals, as the double carbonate of sodium and potassium, NaKCO3.6H2O. (b) A molecular combination of two distinct salts, as common alum, which consists of the sulphate of aluminium, and the sulphate of potassium or ammonium. -- Double shuffle, a low, noisy dance. -- Double standard (Polit. Econ.), a dou…

States: The peregrine falcon. (b) In England: The marsh harrier or moor buzzard. -- Duck mole (Zoöl.), a small aquatic mammal of Australia, having webbed feet and a bill resembling that of a duck (Ornithorhynchus anatinus). It belongs the subclass Monotremata and is remarkable for laying eggs like a bird or reptile; -…