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Vacuum :: Vacuum (n.) The condition of rarefaction, or reduction of pressure below that of the atmosphere, in a vessel, as the condenser of a steam engine, which is nearly exhausted of air or steam, etc.; as, a vacuum of 26 inches of mercury, or 13 pounds per square inch..

Indol :: Indol (n.) A white, crystalline substance, C8H7N, obtained from blue indigo, and almost all indigo derivatives, by a process of reduction. It is also formed from albuminous matter, together with skatol, by putrefaction, and by fusion with caustic potash, and is present in human excrement, as well as in the intestinal canal of some herbivora..

Gas :: Gas (n.) An aeriform fluid; -- a term used at first by chemists as synonymous with air, but since restricted to fluids supposed to be permanently elastic, as oxygen, hydrogen, etc., in distinction from vapors, as steam, which become liquid on a reduction of temperature. In present usage, since all of the supposed permanent gases have been liquified by cold and pressure, the term has resumed nearly its original signification, and is applied to any substance in the elastic or aeriform state..

Manganese :: Manganese (n.) An element obtained by reduction of its oxide, as a hard, grayish white metal, fusible with difficulty, but easily oxidized. Its ores occur abundantly in nature as the minerals pyrolusite, manganite, etc. Symbol Mn. Atomic weight 54.8..

Depreciation :: Depreciation (n.) The falling of value; reduction of worth.

Pyrroline :: Pyrroline (n.) A nitrogenous base, C4H7N, obtained as a colorless liquid by the reduction of pyrrol..

Hydrophlorone :: Hydrophlorone (n.) A white, crystalline benzene derivative, C8H10O2, obtained by the reduction of phlorone..

Resolvable :: Resolvable (a.) Admitting of being resolved; admitting separation into constituent parts, or reduction to first principles; admitting solution or explanation; as, resolvable compounds; resolvable ideas or difficulties..

Gallin :: Gallin (n.) A substance obtained by the reduction of gallein.

Dipyridil :: Dipyridil (n.) A crystalline nitrogenous base, C10H8N2, obtained by the reduction of pyridine..

Fixation :: Fixation (n.) The act of uniting chemically with a solid substance or in a solid form; reduction to a non-volatile condition; -- said of gaseous elements.

Trance :: Trance (n.) A condition, often simulating death, in which there is a total suspension of the power of voluntary movement, with abolition of all evidences of mental activity and the reduction to a minimum of all the vital functions so that the patient lies still and apparently unconscious of surrounding objects, while the pulsation of the heart and the breathing, although still present, are almost or altogether imperceptible..

Leuc- :: Leuc- () A combining form signifying white, colorless; specif. (Chem.), denoting an extensive series of colorless organic compounds, obtained by reduction from certain other colored compounds; as, leucaniline, leucaurin, etc..

Hydrosulphurous :: Hydrosulphurous (a.) Pertaining to, or designating, an acid obtained by the reduction of sulphurous acid. See Hyposulphurous acid, under Hyposulphurous..

Degradation :: Degradation (n.) Diminution or reduction of strength, efficacy, or value; degeneration; deterioration..

Abatement :: Abatement (n.) The amount abated; that which is taken away by way of reduction; deduction; decrease; a rebate or discount allowed.

Reducement :: Reducement (n.) Reduction.

Scoria :: Scoria (n.) The recrement of metals in fusion, or the slag rejected after the reduction of metallic ores; dross..

Nicotidine :: Nicotidine (n.) A complex, oily, nitrogenous base, isomeric with nicotine, and obtained by the reduction of certain derivatives of the pyridine group..

Abridgment :: Abridgment (n.) The act of abridging, or the state of being abridged; diminution; lessening; reduction or deprivation; as, an abridgment of pleasures or of expenses..

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