English definition of Phosphorus

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Definition of phosphorus

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Phosphorus (n.) A poisonous nonmetallic element of the nitrogen group, obtained as a white, or yellowish, translucent waxy substance, having a characteristic disagreeable smell. It is very active chemically, must be preserved under water, and unites with oxygen even at ordinary temperatures, giving a faint glow, -- whence its name. It always occurs compined, usually in phosphates, as in the mineral apatite, in bones, etc. It is used in the composition on the tips of friction matches, and for man

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Match :: Match (n.) Anything used for catching and retaining or communicating fire, made of some substance which takes fire readily, or remains burning some time; esp., a small strip or splint of wood dipped at one end in a substance which can be easily ignited by friction, as a preparation of phosphorus or chlorate of potassium..

Tetratomic :: Tetratomic (a.) Consisting of four atoms; having four atoms in the molecule, as phosphorus and arsenic..

Vanadium :: Vanadium (n.) A rare element of the nitrogen-phosphorus group, found combined, in vanadates, in certain minerals, and reduced as an infusible, grayish-white metallic powder. It is intermediate between the metals and the non-metals, having both basic and acid properties. Symbol V (or Vd, rarely). Atomic weight 51.2..

Phosphor :: Phosphor (n.) Phosphorus.

Schreibersite :: Schreibersite (n.) A mineral occurring in steel-gray flexible folia. It contains iron, nickel, and phosphorus, and is found only in meteoric iron..

Phospham :: Phospham (n.) An inert amorphous white powder, PN2H, obtained by passing ammonia over heated phosphorus..

Phosphorous :: Phosphorous (a.) Of or pertaining to phosphorus; resembling or containing phosphorus; specifically, designating those compounds in which phosphorus has a lower valence as contrasted with phosphoric compounds; as, phosphorous acid, H3PO3..

Phosphide :: Phosphide (n.) A binary compound of phosphorus.

Phosphorized :: Phosphorized (a.) Containing, or impregnated with, phosphorus..

Phosphorus :: Phosphorus (n.) A poisonous nonmetallic element of the nitrogen group, obtained as a white, or yellowish, translucent waxy substance, having a characteristic disagreeable smell. It is very active chemically, must be preserved under water, and unites with oxygen even at ordinary temperatures, giving a faint glow, -- whence its name. It always occurs compined, usually in phosphates, as in the mineral apatite, in bones, etc. It is used in the composition on the tips of friction matches, and for man

Phosphoric :: Phosphoric (a.) Of or pertaining to phosphorus; resembling, or containing, from us; specifically, designating those compounds in which phosphorus has a higher valence as contrasted with the phosphorous compounds..

Tantalic :: Tantalic (a.) Of or pertaining to tantalum; derived from, or containing, tantalum; specifically, designating any one of a series of acids analogous to nitric acid and the polyacid compounds of phosphorus..

Organogen :: Organogen (n.) A name given to any one of the four elements, carbon, hydrogen, oxygen, and nitrogen, which are especially characteristic ingredients of organic compounds; also, by extension, to other elements sometimes found in the same connection; as sulphur, phosphorus, etc..

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

Sulphophosphorous :: Sulphophosphoric (a.) Of, pertaining to, or designating, a hypothetical sulphacid of phosphorus, analogous to phosphoric acid, and known in its salts..

Nuclein :: Nuclein (n.) A constituent of the nuclei of all cells. It is a colorless amorphous substance, readily soluble in alkaline fluids and especially characterized by its comparatively large content of phosphorus. It also contains nitrogen and sulphur..

Phosphoresce :: Phosphoresce (v. i.) To shine as phosphorus; to be phosphorescent; to emit a phosphoric light.

Cast Iron :: Cast iron () Highly carbonized iron, the direct product of the blast furnace; -- used for making castings, and for conversion into wrought iron and steel. It can not be welded or forged, is brittle, and sometimes very hard. Besides carbon, it contains sulphur, phosphorus, silica, etc..

Passive :: Passive (a.) Inactive; inert; not showing strong affinity; as, red phosphorus is comparatively passive..

Pentoxide :: Pentoxide (n.) An oxide containing five atoms of oxygen in each molecule; as, phosphorus pentoxide, P2O5..