Definition of Phosphori. Meaning of Phosphori. Synonyms of Phosphori

Here you will find one or more explanations in English for the word Phosphori. Also in the bottom left of the page several parts of wikipedia pages related to the word Phosphori and, of course, Phosphori synonyms and on the right images related to the word Phosphori.

Definition of Phosphori

Phosphori
Phosphorus Phos"phor*us, n.; pl. Phosphori. [L., the morning star, Gr. ?, lit., light bringer; ? light + ? to bring.] 1. The morning star; Phosphor. 2. (Chem.) 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 many other purposes. The molecule contains four atoms. Symbol P. Atomic weight 31.0. 3. (Chem.) 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 having similar properties. Metallic phosphorus (Chem.), an allotropic modification of phosphorus, obtained as a gray metallic crystalline substance, having very inert chemical properties. It is obtained by heating ordinary phosphorus in a closed vessel at a high temperature. Phosphorus disease (Med.), a disease common among workers in phosphorus, giving rise to necrosis of the jawbone, and other symptoms. Red, or Amorphous, phosphorus (Chem.), an allotropic modification of phosphorus, obtained as a dark red powder by heating ordinary phosphorus in closed vessels. It is not poisonous, is not phosphorescent, and is only moderately active chemically. It is valuable as a chemical reagent, and is used in the composition of the friction surface on which safety matches are ignited. Solar phosphori (Chem.), phosphorescent substances which shine in the dark after exposure to the sunlight or other intense light.

Meaning of Phosphori from wikipedia

- by Sally Beaumont, Springer, 1996, p. 23, from Bianchini, Hesperi et phosphori nova phaenomena, Rome, 1728, pp. 5-6 Herschel, W. (1956, May). Herschel’s...
- nella Via Appia, ed illustrate Con le Annotazioni (Rome, 1727) Hesperi et Phosphori nova phaenomena sive observationes circa planetam Veneris (Rome, 1728)...
- drawn by Stefano, to Francesco Bianchini's astronomical work, Hesperi et Phosphori nova phaenomena sive observationes circa planetam Veneris Rome 1728 [2]...
- experiments on the "qualities of air", others "concerning the vitreous phosphori", and "relating to the electricity of bodies". Stewart, Larry. "Hauksbee...
- 18 January 1766. Citations Beccari, Bartolomeo (1744). De quamplurimis phosphoris nunc primum detectis commentarius. Bologna, Italy: Ex typographia Laelii...
- Inventorem anagrammatizomenum", (with Christian Adolf Balduin), 1674. "De phosphoris quatuor observationes", 1676. English translations: "The Curious Distillatory;...