ALL meanings of platinum
plat·i·num
P p - noun platinum Chemistry. a heavy, grayish-white, highly malleable and ductile metallic element, resistant to most chemicals, practically unoxidizable except in the presence of bases, and fusible only at extremely high temperatures: used for making chemical and scientific apparatus, as a catalyst in the oxidation of ammonia to nitric acid, and in jewelry. Symbol: Pt; atomic weight: 195.09; atomic number: 78; specific gravity: 21.5 at 20°C. 1
- noun platinum a light, metallic gray with very slight bluish tinge when compared with silver. 1
- adjective platinum made of platinum. 1
- noun platinum silvery metal 1
- adjective platinum (of an audio recording) having sold a minimum of one million copies. 1
- adjective platinum made of platinum 1
- adjective platinum CD: that has sold a million copies 1
- uncountable noun platinum Platinum is a very valuable, silvery-grey metal. It is often used for making jewellery. 0
- colour platinum Platinum hair is very fair, almost white. 0
- noun platinum a ductile malleable silvery-white metallic element, very resistant to heat and chemicals. It occurs free and in association with other platinum metals, esp in osmiridium: used in jewellery, laboratory apparatus, electrical contacts, dentistry, electroplating, and as a catalyst. Symbol: Pt; atomic no: 78; atomic wt: 195.08; valency: 1–4; relative density: 21.45; melting pt: 1769°C; boiling pt: 3827±100°C 0
- noun platinum a medium to light grey colour 0
- noun platinum (as adjective) 0
- noun platinum a silver-colored, malleable, ductile, metallic chemical element that is highly resistant to corrosion and tarnish, used as a chemical catalyst, for acid-proof containers, ignition fuses, jewelry, dental alloys, etc.: symbol, Pt; at. no., 78 0
- adjective platinum designating a record, tape, disc, video, etc. which has registered sales of a specified number, as two million, or value, as $1,000,000 0