Search the Dictionary

luster. It is produced artificially, by the chemical dehydration of thionine, as a brown amorphous powder.

higher valence as contrasted with the titanous compounds. Titanic acid (Chem.), a white amorphous powder, Ti.(OH)4, obtained by decomposing certain titanates; -- called also normal titanic acid. By extension, any one of a series of derived acids, called also metatitanic acid, polytitanic acid, etc. -- Titanic iron or…

the minerals manaccanite, rutile, sphene, etc., and isolated as an infusible iron- gray amorphous powder, having a metallic luster. It burns when heated in the air. Symbol Ti. Atomic weight 48.1.

To change the outward form or appearance of; to metamorphose; to transform.

To change the form of; to change in shape or appearance; to metamorphose; as, a caterpillar is ultimately transformed into a butterfly. Love may transform me to an oyster. Shak.

ment of the germ into the embryo, the egg into the animal, the larva into the insect (metamorphosis), etc.; also, the change which the histological units of a tissue are prone to undergo. See Metamorphosis.

To transmute; to transform; to metamorphose. [Archaic] Chaucer. Spenser. To transmew thyself from a holy hermit into a sinful forester. Sir W. Scott.

An amorphous variety of manna obtained from the nests and cocoons of a Syrian coleopterous insect (Larinus maculatus, L. nidificans, etc.) which feeds on the foliage of a variety of thistle. It is used as an article of food, and is called also nest sugar.

th dextrin, obtained from quitch grass (Agropyrum, formerly Triticum, repens) as a white amorphous substance.

To change the form, quality, aspect, or effect of; to alter; to metamorphose; to convert; to transform; -- often with to or into before the word denoting the effect or product of the change; as, to turn a worm into a winged insect; to turn green to blue; to turn prose into verse; to turn a Whig to a Tory, or a Hindoo t…

The double cyanide of ferrous and ferric iron, a dark blue amorphous substance having a coppery luster, used in dyeing, calico printing, etc. Cf. Prussian blue, under Prussian.

A yellow or brown amorphous substance obtained as a sublimation product in the flues of smelting furnaces of zinc, and consisting of a crude zinc oxide.

A brown amorphous substance found in decaying vegetation. Cf. Humin. [Formerly written ulmine.]

Not formed; not arranged into regular shape, order, or relations; shapeless; amorphous.

A yellowish amorphous alkaloid extracted from the rootstock of Veratrum album.

An alkaloid obtained as a yellow amorphous substance by the decomposition of veratrine.

wallowwort (Vincetoxicum officinale, a plant of the Asclepias family) as a bitter yellow amorphous substance; -- called also asclepiadin, and cynanchin.

A pale yellow amorphous substance of alkaloidal nature and emetic properties, said to have been extracted from the root and foliage of the violet (Viola).

za in certain kinds of decayed wood, as the beech, oak, birch, etc., and extracted as an amorphous powder resembling indigo.

ver. -- Yellow precipitate (Med. Chem.), an oxide of mercury which is thrown down as an amorphous yellow powder on adding corrosive sublimate to limewater. -- Yellow puccoon. (Bot.) Same as Orangeroot. -- Yellow rail (Zoöl.), a small American rail (Porzana Noveboracensis) in which the lower parts are dull yellow, da…