| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024ar•se•nic /ˈɑrsənɪk/USA pronunciation n. [uncountable]- Chemistrya grayish white substance, one of the chemical elements, that can be made into a dangerous poison.
- Chemistrythe poison made from arsenic.
WordReference Random House Unabridged Dictionary of American English © 2024ar•se•nic (n. är′sə nik, ärs′nik;adj. är sen′ik),USA pronunciation n. - Chemistrya grayish-white element having a metallic luster, vaporizing when heated, and forming poisonous compounds. Symbol: As;
at. wt.: 74.92;
at. no.: 33. - ChemistrySee arsenic trioxide.
- Mineralogya mineral, the native element, occurring in white or gray masses.
adj. ar•sen•ic - Chemistryof or containing arsenic, esp. in the pentavalent state.
- *arznig, metathetic variant of Syriac zarnig) by folk etymology, etymological
- Greek arsenikón orpiment, noun, nominal use of neuter of arsenikós virile (ársēn male, strong + -ikos -ic), probably alteration of Oriental word (perh.
- Latin
- Middle English arsenicum 1350–1400
Collins Concise English Dictionary © HarperCollins Publishers:: arsenic n /ˈɑːsnɪk/- a toxic metalloid element, existing in several allotropic forms, that occurs principally in realgar and orpiment and as the free element. It is used in transistors, lead-based alloys, and high-temperature brasses. Symbol: As; atomic no: 33; atomic wt: 74.92159; valency: –3, 0, +3, or +5; relative density: 5.73 (grey); melting pt: 817°C at a pressure of 3MN/m² (grey); sublimes at 613°C (grey)
- a nontechnical name for arsenic trioxide
adj /ɑːˈsɛnɪk/- of or containing arsenic, esp in the pentavalent state
Etymology: 14th Century: from Latin arsenicum, from Greek arsenikon yellow orpiment, from Syriac zarnīg (influenced in form by Greek arsenikos virile) |