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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…

A steel in which the amount of phosphorus exceeds that of carbon.

, to any surface. -- Phosphor bronze and Silicious or Silicium bronze are made by adding phosphorus and silicon respectively to ordinary bronze, and are characterized by great tenacity.

A hydrous phosphate of iron occurring in yellow radiated tufts. The phosphorus seriously injures it as an iron ore.

lded or forged, is brittle, and sometimes very hard. Besides carbon, it contains sulphur, phosphorus, silica, etc.

Steel hardened by the addition of other elements, as manganese, phosphorus, or (usually) carbon.

Pertaining to, or derived from, or containing, phosphorus in a lower state of oxidation than in phosphoric compounds; as, hypophosphoric acid. Hypophosphoric acid (Chem.), an acid, P2H4O6, produced by the slow oxidation of moist phosphorus, and isolated only as a solution in water. It is regarded as a condensation prod…

Pertaining to, or containing, phosphorus in a lower state of oxidation than in phosphoric compounds; as, hypophosphorous acid. Hypophosphorous acid (Chem.) , an acid, H3PO2, whose salts are produced by the action of barium hygrate on phosphorus. It may be obtained from its water solution, by exaporation and freezing, a…

A nitrogenous substance free from phosphorus, supposed to be present in the brain; a body closely related to cerebrin.

ed at one end in a substance which can be easily ignited by friction, as a preparation of phosphorus or chlorate of potassium. Match box, a box for holding matches. -- Match tub, a tub with a perforated cover for holding slow matches for firing cannon, esp. on board ship. The tub contains a little water in the bottom,…

ds possess or produce acid, rather than basic, properties; a nonmetal; as, boron, carbon, phosphorus, nitrogen, oxygen, sulphur, chlorine, bromine, etc., are metalloids.

That which shines at night; -- a fanciful name for phosphorus.

ble in alkaline fluids and especially characterized by its comparatively large content of phosphorus. It also contains nitrogen and sulphur.

also, by extension, to other elements sometimes found in the same connection; as sulphur, phosphorus, etc.

Inactive; inert; not showing strong affinity; as, red phosphorus is comparatively passive.

An oxide containing five atoms of oxygen in each molecule; as, phosphorus pentoxide, P2O5.

An inert amorphous white powder, PN2H, obtained by passing ammonia over heated phosphorus. [Spelt also phosphame.] -- Phos"pham"ic, a.

Pertaining to, or containing, phosphorus, phosphoric acid, or phosphates; as, phosphatic nodules. Phosphatic diathesis (Med.), a habit of body which leads to the undue excretion of phosphates with the urine.

A binary compound of phosphorus.

Phosphorus. [Obs.] Addison.