plat·i·num (pl t n- m)n. 1. Symbol Pt A silver-white metallic element occurring worldwide, usually mixed with other metals such as iridium, osmium, or nickel. It is ductile and malleable, does not oxidize in air, and is used as a catalyst and in electrical components, jewelry, dentistry, and electroplating. Atomic number 78; atomic weight 195.08; melting point 1,772°C; boiling point 3,827°C; specific gravity 21.45; valence 2, 3, 4. See Table at element. 2. A medium to light gray. [New Latin, from Spanish platina, platinum; see platina.] |
platinum
Noun
a silvery-white metallic element, very resistant to heat and chemicals: used in jewellery, laboratory apparatus, electrical contacts, dentistry, electroplating, and as a catalyst Symbol: Pt[Spanish platina silvery element]
| platinum (pltn-m) Symbol Pt A soft, ductile, malleable, silver-white metallic element that usually occurs with osmium, iridium, palladium, or nickel. It has a high melting point and does not corrode in air. Platinum is used as a catalyst and in making jewelry, electrical contacts, and dental crowns. Atomic number 78; atomic weight 195.08; melting point 1,772°C; boiling point 3,827°C; specific gravity 21.45; valence 2, 3, 4. See Periodic Table. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  platinum - a heavy precious metallic element; grey-white and resistant to corroding; occurs in some nickel and copper ores and is also found native in some depositsnoble metal - any metal that is resistant to corrosion or oxidation |
Translations
n / adj platinum [ˈplӕtinəm]
(of) an element, a heavy, valuable grey metal, often used in making jewellery a platinum ring. platinum بْلاتين، ذَهَب أبْيَض платина platina; platinový platin das Platin, Platin-... λευκόχρυσος, πλατίνα platino plaatina پلاتین platina (de) platine פְּלָטִינָה प्लैटिनम platina platina platina platína platino; di platino プラチナ 백금(의) platina platīns platinum platina platina platyna, platynowy platina (de/din) platină платина platina; platinový platina platina platina ทองคำขาว platin 鉑，白金 платина پلانٹيم، نقرشہ bạch kim 铂，白金
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