n.
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 a medicine for neuralgia, like belladonna. Called also hyoscyamia, duboisine, etc. →
v. t.
To remove by rubbing or cleansing; to sweep along or off; to carry away or remove, as by a current of water; -- often with off or away. →
n.
A sound uttered, or a letter pronounced, by the aid of the palate, as the letters k and y. →
n.
A picture printed from a kind of gelatine plate produced by means of a photographic negative. →
n.
A silicate of iron and lime occurring in black prismatic crystals; -- also called ilvaite. →
n.
The act of progressing by regular steps or orderly arrangement; the state of being graded or arranged in ranks; as, the gradation of castes. →