Search the Dictionary

Phosphorescent. "A phosphoric sea." Byron. Glacial phosphoric acid. (Chem.) (a) Metaphosphoric acid in the form of glassy semitransparent masses or sticks. (b) Pure normal phosphoric acid. -- Phosphoric acid (Chem.), a white crystalline substance, H3PO4, which is the most highly oxidized acid of phosphorus, and forms…

Hence, any substance which shines in the dark like phosphorus, as certain phosphorescent bodies. Bologna phosphorus (Chem.), sulphide of barium, which shines in the dark after exposure to light; -- so called because this property was discovered by a resident of Bologna. The term is sometimes applied to other compounds…

thalic acid, and well represented by phenol phthaleïn. Their alkaline solutions are fluorescent. Phenol phthalein, a white or yellowish white crystalline substance made from phthalic acid and phenol. Its solution in alkalies is brilliant red, but is decolorized by acids, and as this reaction is exceedingly delicate it…

A small incandescent telltale lamp on a dynamo or battery circuit to show approximately by its brightness the voltage of the current.

A descent; a fall; a thrusting down.

high degree, and is employed as an oxidizer. -- Platinum lamp (Elec.), a kind of incandescent lamp of which the luminous medium is platinum. See under Incandescent. -- Platinum metals (Chem.), the group of metallic elements which in their chemical and physical properties resemble platinum. These consist of the light…

uctive to plums, nectarines cherries, and many other stone fruits. It lays its eggs in crescent-shaped incisions made with its jaws. The larva lives upon the pulp around the stone. Called also turk, and plum curculio. See Illust. under Curculio.

A capsule of plant, especially a legume; a dry dehiscent fruit. See Illust. of Angiospermous.

A small European carnivore of the Weasel family (Putorius foetidus). Its scent glands secrete a substance of an exceedingly disagreeable odor. Called also fitchet, foulmart, and European ferret.

Esculin; -- so called in allusion to its fluorescent solutions. [R.]

Pertaining to, or characterized by, descent from more than one root form, or from many different root forms; polygenetic; -- opposed to Ant: monophyletic.

species of shark (Lamna cornubica), about eight feet long, having a pointed nose and a crescent-shaped tail; -- called also mackerel shark. [Written also probeagle.]

A jar or packet of flower leaves, perfumes, and spices, used to scent a room.

Falling, flowing, or rushing, with steep descent; headlong. Precipitate the furious torrent flows. Prior.

o a line or surface; declivous; inclined; not level. Since the floods demand, For their descent, a prone and sinking land. Blackmore.

Descent; declivity; as, the proneness of a hill.

Having two coalescent cotyledons, as the live oak and the horse-chestnut.

The quality or state of being pubescent, or of having arrived at puberty. Sir T. Browne.

A sweet-scented powder; pulvillio. [Written also pulville.] [Obs.] Gay.

To acquire by any means except descent or inheritance. Blackstone.