phosphorus
1Phosphorus — Phos phor*us (f[o^]s f[o^]r*[u^]s), n.; pl. {Phosphori} (f[o^]s f[o^]r*[imac]). [L., the morning star, Gr. fwsfo ros, lit., light bringer; fw^s light + fe rein to bring.] 1. The morning star; Phosphor. [1913 Webster] 2. (Chem.) A poisonous… …
2phosphorus 32 — thərt ē tü n a heavy radioactive isotope of phosphorus having a mass number of 32 and a half life of 14.3 days that is produced in nuclear reactors and used chiefly in tracer studies (as in biology and in chemical analysis) and in medical diagnos …
3phosphorus — phosphorus, phosphorous Phosphorus is the noun for the chemical element, and phosphorous is the adjective meaning ‘containing phosphorus’ …
4phosphorus — [fäs′fə rəs] n. [ModL < L Phosphorus, morning star < Gr phōsphoros, bringer of light < phōs, a light, contr. < phaos < IE base * bhā , to shine > Gr phainein, to show (> FANTASY) + PHOR(O)US] 1. Archaic any phosphorescent… …
5phosphorus — substance or organism that shines of itself, 1640s, from L. phosphorus light bringing, also the morning star (a sense attested in English from 1620), from Gk. Phosphoros morning star, lit. torchbearer, from phos light (related to phainein to show …
6phosphorus — ► NOUN ▪ a poisonous non metallic chemical element existing as a yellowish waxy solid which ignites spontaneously in air and glows in the dark, and as a less reactive form used in making matches. DERIVATIVES phosphorous adjective. USAGE The… …
7phosphorus — Symbol: P Atomic number: 15 Atomic weight: 30.9738 Non metallic element belonging to group 15 of the periodic table. Has a multiple allotropic forms. Essential element for living organisms. It was discovered by Brandt in 1669 …
8Phosphorus — This article is about the chemical element. For other uses, see Phosphorus (disambiguation). silicon ← phosphorus → sulfur …
9phosphorus — /fos feuhr euhs/, n., pl. phosphori / feuh ruy /. 1. Chem. a solid, nonmetallic element existing in at least three allotropic forms, one that is yellow, poisonous, flammable, and luminous in the dark, one that is red, less poisonous, and less… …
10Phosphorus — /fos feuhr euhs/, n. Phosphor. * * * Nonmetallic chemical element, chemical symbol P, atomic number 15. The ordinary allotrope, called white phosphorus, is a poisonous, colourless, semitransparent, soft, waxy solid that glows in the dark (see… …
