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Condense :: Condense (v. i.) To combine or unite (as two chemical substances) with or without separation of some unimportant side products.

Alchymy :: Alchymy (n.) See Alchemic, Alchemist, Alchemistic, Alchemy..

Equivalent :: Equivalent (n.) That comparative quantity by weight of an element which possesses the same chemical value as other elements, as determined by actual experiment and reference to the same standard. Specifically: (a) The comparative proportions by which one element replaces another in any particular compound; thus, as zinc replaces hydrogen in hydrochloric acid, their equivalents are 32.5 and 1. (b) The combining proportion by weight of a substance, or the number expressing this proportion, in any

Alcohol :: Alcohol (n.) A class of compounds analogous to vinic alcohol in constitution. Chemically speaking, they are hydroxides of certain organic radicals; as, the radical ethyl forms common or ethyl alcohol (C2H5.OH); methyl forms methyl alcohol (CH3.OH) or wood spirit; amyl forms amyl alcohol (C5H11.OH) or fusel oil, etc..

Dipropargyl :: Dipropargyl (n.) A pungent, mobile, volatile liquid, C6H6, produced artificially from certain allyl derivatives. Though isomeric with benzine, it is very different in its chemical relations. Called also dipropinyl..

Allomerism :: Allomerism (n.) Variability in chemical constitution without variation in crystalline form.

Diactinic :: Diactinic (a.) Capable of transmitting the chemical or actinic rays of light; as, diactinic media..

Cementation :: Cementation (n.) A process which consists in surrounding a solid body with the powder of other substances, and heating the whole to a degree not sufficient to cause fusion, the physical properties of the body being changed by chemical combination with powder; thus iron becomes steel by cementation with charcoal, and green glass becomes porcelain by cementation with sand..

Passivity :: Passivity (n.) The quality or condition of any substance which has no inclination to chemical activity; inactivity.

Bolthead :: Bolthead (n.) A long, straight-necked, glass vessel for chemical distillations; -- called also a matrass or receiver..

Homology :: Homology (n.) The correspondence or resemblance of substances belonging to the same type or series; a similarity of composition varying by a small, regular difference, and usually attended by a regular variation in physical properties; as, there is an homology between methane, CH4, ethane, C2H6, propane, C3H8, etc., all members of the paraffin series. In an extended sense, the term is applied to the relation between chemical elements of the same group; as, chlorine, bromine, and iodine are said

Charcoal :: Charcoal (v. t.) Impure carbon prepared from vegetable or animal substances; esp., coal made by charring wood in a kiln, retort, etc., from which air is excluded. It is used for fuel and in various mechanical, artistic, and chemical processes..

Optogram :: Optogram (n.) An image of external objects fixed on the retina by the photochemical action of light on the visual purple. See Optography.

Rancid :: Rancid (a.) Having a rank smell or taste, from chemical change or decomposition; musty; as, rancid oil or butter..

Archchemic :: Archchemic (a.) Of supreme chemical powers.

Vacuole :: Vacuole (n.) A small air cell, or globular space, in the interior of organic cells, either containing air, or a pellucid watery liquid, or some special chemical secretions of the cell protoplasm..

Paraffine :: Paraffine (n.) A white waxy substance, resembling spermaceti, tasteless and odorless, and obtained from coal tar, wood tar, petroleum, etc., by distillation. It is used as an illuminant and lubricant. It is very inert, not being acted upon by most of the strong chemical reagents. It was formerly regarded as a definite compound, but is now known to be a complex mixture of several higher hydrocarbons of the methane or marsh-gas series; hence, by extension, any substance, whether solid, liquid, or

Stoicism :: Stoichiometry (n.) The art or process of calculating the atomic proportions, combining weights, and other numerical relations of chemical elements and their compounds..

Separation :: Separation (n.) Chemical analysis.

Electro-chemical :: Electro-chemical (a.) Of or pertaining to electro-chemistry.

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