英语词汇“phosphorus”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

noun

an allotropic nonmetallic element occurring in phosphates and living matter. Ordinary phosphorus is a toxic flammable phosphorescent white solid; the red form is less reactive and nontoxic: used in matches, pesticides, and alloys. The radioisotope phosphorus-32 (radiophosphorus), with a half-life of 14.3 days, is used in radiotherapy and as a tracer. Symbol:P; atomic no: 15; atomic wt: 30.973 762; valency: 3 or 5; relative density: 1.82 (white), 2.20 (red); melting pt: 44.1°C (white); boiling pt: 280°C (white)

2. Word forms: plural phosphori (-rai) a less common name for a phosphor

单词	phosphorus
释义	Word Frequency phosphorus (ˈfɒsfərəs) noun 1. an allotropic nonmetallic element occurring in phosphates and living matter. Ordinary phosphorus is a toxic flammable phosphorescent white solid; the red form is less reactive and nontoxic: used in matches, pesticides, and alloys. The radioisotope phosphorus-32 (radiophosphorus), with a half-life of 14.3 days, is used in radiotherapy and as a tracer. Symbol:P; atomic no: 15; atomic wt: 30.973 762; valency: 3 or 5; relative density: 1.82 (white), 2.20 (red); melting pt: 44.1°C (white); boiling pt: 280°C (white) 2. Word forms: plural phosphori (-rai) a less common name for a phosphor Word origin C17: via Latin from Greek phōsphoros light-bringing, from phōs light +pherein to bring Word Frequency Phosphorus (ˈfɒsfərəs) noun a morning star, esp Venus
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phosphorus

Phosphorus