Search the Dictionary

An alkaloid constituting the active principle of ergot; -- so named from its power of producing abortion.

A white crystalline bitter alkaloid extracted from ipecacuanha root, and regarded as its peculiar emetic principle.

A powerful astringent alkaloid extracted from ergot as a brown, amorphous, bitter substance. It is used to produce contraction of the uterus.

A white crystalline alkaloid, extracted from sassy bark (Erythrophleum Guineense).

An alkaloid found in the Calabar bean, and the seed of Physostigma venenosum; physostigmine. It is used in ophthalmic surgery for its effect in contracting the pupil.

An alkaloid extracted from fumitory, as a white crystalline substance.

An alkaloid obtained from the yellow jasmine (Gelsemium sempervirens), as a bitter white semicrystalline substance; -- called also gelsemia.

An alkaloid obtained from the plant Glaucium, as a bitter, white, crystalline substance.

lways break down into some characteristic substance (acid, aldehyde, alcohol, phenole, or alkaloid) and glucose (or some other sugar); hence the name. They are of the nature of complex and compound ethers, and ethereal salts of the sugar carbohydrates.

An alkaloid existing in small quantities in opium.

An alkaloid extracted from guarana. Same as Caffeine.

An alkaloid found in the plant Peganum harmala. It forms bitter, yellow salts.

An alkaloid accompanying harmaline (in the Peganum harmala), and obtained from it by oxidation. It is a white crystalline substance.

An alkaloid, prepared from atropine, and from other sources. It is chemically related to atropine, and is used for the same purpose.

An alkaloid, found in the rootstock of the golden seal (Hydrastis Canadensis), and extracted as a bitter, white, crystalline substance. It is used as a tonic and febrifuge.

An alkaloid associated with cocaine in coca leaves (Erythroxylon coca), and extracted as a thick, yellow oil, having a pungent taste and odor.

An alkaloid found with hyoscyamine (with which it is also isomeric) in henbane, and extracted as a white, amorphous, semisolid substance.

An alkaloid found in henbane (Hyoscyamus niger), and regarded as its active principle. It is also found with other alkaloids in the thorn apple and deadly nightshade. It is extracted as a white crystalline substance, with a sharp, offensive taste. Hyoscyamine is isomeric with atropine, is very poisonous, and is used as…

An alkaloid found in nux vomica, and extracted as a white crystalline substance.

A suffix, indicating that those substances of whose names it is a part are basic, and alkaloidal in their nature.