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phosphorus 的定义
plural phos·pho·ri [fos-fuh-rahy]. /ˈfɒs fəˌraɪ/.
- Chemistry. 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 flammable, and another that is black, insoluble in most solvents, and the least flammable. The element is used in forming smoke screens, its compounds are used in matches and phosphate fertilizers, and it is a necessary constituent of plant and animal life in bones, nerves, and embryos. Symbol: P; atomic weight: 30.974; atomic number: 15; specific gravity: 1.82 at 20°C, 2.20 at 20°C, 2.25–2.69 at 20°C.
- any phosphorescent substance.
- phosphor.
phosphorus 近义词
等同于 morning star
更多phosphorus例句
- Gardening fertilizer contains nitrogen and phosphorus in forms that plant roots can easily slurp up.
- This suggested that phosphorus could be a “bottleneck” element for life in the cosmos.
- Sewage and agricultural fertilizer are two potent sources of nitrogen and phosphorus.
- What’s more, there is no evidence of a recent, large impact that might have enhanced atmospheric phosphorus concentrations.
- Phosphine is created from phosphorus with three hydrogen atoms.
- The ones that launched phosphorus bombs and used chemical weapons?
- The silver rays struck upon their foreheads wet with the vapors of night, and made them like frost seen through phosphorus.
- From the amount of phosphorus found there appears to be about one dose of phosphoric acid to a twenty-ounce bottle.
- Leading physiologists quite generally agree that phosphorus in the form of glycerophosphates influences metabolism very little.
- In its elementary form, phosphorus is difficult to handle, and therefore not convenient for use.
- The existence in the system of a form of phosphorus less highly oxidized than the phosphates is unproved.