Definition of chemical

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Chemical (a.) Pertaining to chemistry; characterized or produced by the forces and operations of chemistry; employed in the processes of chemistry; as, chemical changes; chemical combinations..

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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.
Neutralize :: Neutralize (v. t.) To render inert or imperceptible the peculiar affinities of, as a chemical substance; to destroy the effect of; as, to neutralize an acid with a base..
Coagulation :: Coagulation (n.) The change from a liquid to a thickened, curdlike, insoluble state, not by evaporation, but by some kind of chemical reaction; as, the spontaneous coagulation of freshly drawn blood; the coagulation of milk by rennet, or acid, and the coagulation of egg albumin by heat. Coagulation is generally the change of an albuminous body into an insoluble modification..
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..
Tithonic :: Tithonic (a.) Of, pertaining to, or denoting, those rays of light which produce chemical effects; actinic..
Skatol :: Skatol (n.) A constituent of human faeces formed in the small intestines as a product of the putrefaction of albuminous matter. It is also found in reduced indigo. Chemically it is methyl indol, C9H9N..
Paramorphism :: Paramorphism (n.) The change of one mineral species to another, so as to involve a change in physical characters without alteration of chemical composition..
Extract :: Extract (v. t.) To withdraw by expression, distillation, or other mechanical or chemical process; as, to extract an essence. Cf. Abstract, v. t., 6..
Anion :: Anion (n.) An electro-negative element, or the element which, in electro-chemical decompositions, is evolved at the anode; -- opposed to cation..
Lignin :: Lignin (n.) A substance characterizing wood cells and differing from cellulose in its conduct with certain chemical reagents.
Foam :: Foam (n.) To form foam, or become filled with foam; -- said of a steam boiler when the water is unduly agitated and frothy, as because of chemical action..
Glycocoll :: Glycocoll (n.) A crystalline, nitrogenous substance, with a sweet taste, formed from hippuric acid by boiling with hydrochloric acid, and present in bile united with cholic acid. It is also formed from gelatin by decomposition with acids. Chemically, it is amido-acetic acid. Called also glycin, and glycocin..
Alchemical :: Alchemical (a.) Of or relating to alchemy.
Optography :: Optography (n.) The production of an optogram on the retina by the photochemical action of light on the visual purple; the fixation of an image in the eye. The object so photographed shows white on a purple or red background. See Visual purple, under Visual..
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..
Zymogen :: Zymogen (n.) A mother substance, or antecedent, of an enzyme or chemical ferment; -- applied to such substances as, not being themselves actual ferments, may by internal changes give rise to a ferment..
Drug :: Drug (n.) Any animal, vegetable, or mineral substance used in the composition of medicines; any stuff used in dyeing or in chemical operations..
Decompose :: Decompose (v. t.) To separate the constituent parts of; to resolve into original elements; to set free from previously existing forms of chemical combination; to bring to dissolution; to rot or decay.
Electrolysis :: Electrolysis (n.) The act or process of chemical decomposition, by the action of electricity; as, the electrolysis of silver or nickel for plating; the electrolysis of water..
Agent :: Agent (n.) An active power or cause; that which has the power to produce an effect; as, a physical, chemical, or medicinal agent; as, heat is a powerful agent..
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