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extracted as a white crystalline substance, with a sharp, offensive taste. Hyoscyamine is isomeric with atropine, is very poisonous, and is used as a medicine for neuralgia, like belladonna. Called also hyoscyamia, duboisine, etc.

, not exhibiting any action or activity on polarized light; optically neutral; -- said of isomeric forms of certain substances, in distinction from other forms which are optically active; as, racemic acid is an inactive tartaric acid.

. disperma. -- Indigo purple, a purple obtained from indigo. -- Indigo red, a dyestuff, isomeric with indigo blue, obtained from crude indigo as a dark brown amorphous powder. -- Indigo snake (Zoöl.), the gopher snake. -- Indigo white, a white crystalline powder obtained by reduction from indigo blue, and by oxidat…

A dark red crystalline substance, isomeric with and resembling indigo blue, and obtained from isatide and dioxindol.

A substance isomeric with, and resembling, indigo blue, and accompanying it as a side product, in its artificial production.

A nitrogenous substance, C8H7NO, isomeric with oxindol, obtained as an oily liquid.

ion as a tasteless, white, semicrystalline substance, resembling starch, with which it is isomeric. It is intermediate in nature between starch and sugar. Called also dahlin, helenin, alantin, etc.

Any of several isomeric iodine derivatives of the cresols, C6H3I(CH3)OH, esp. one, an odorless amorphous powder, used in medicine as a substitute for iodoform.

Pertaining to, or designating, an acid obtained from atropine, and isomeric with cinnamic acid.

Designating an acid isomeric with cyanic acid. Isocyanic acid, an acid metameric with cyanic acid, and resembling it in its salts. It is obtained as a colorless, mobile, unstable liquid by the heating cyanuric acid. Called technically carbimide.

Designating, or pertaining to, an acid isomeric with cyanuric acid, and called also fulminuric acid. See under Fulminuric.

A body or compound which is isomeric with another body or compound; a member of an isomeric series.

The state, quality, or relation, of two or more isomeric substances. Physical isomerism (Chem.), the condition or relation of certain (metameric) substances, which, while chemically identical (in that they have the same composition, the same molecular weights, and the same ultimate constitution), are yet physically dif…

Isomorphism between substances that are isomeric.

A crystalline, nitrogenous base, C10H14N2, isomeric with nicotine.

Pertaining to, or designating, an acid isomeric with nicotinic acid.

Pertaining to, or designating, an acid, HNCS, isomeric with sulphocyanic acid.

Pertaining to, or designating, a complex nitrogenous acid, isomeric with uric acid.

An artificial nitrogenous base, isomeric with urea, and forming a white crystalline substance; -- called also isuretine.

in water, with an intensely sour taste and strong acid reaction. There are at least three isomeric modifications all having the formula C3H6O3. Sarcolactic or paralactic acid occurs chiefly in dead muscle tissue, while ordinary lactic acid results from fermentation. The two acids are alike in having the same constituti…