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Definition of Platinum in English :

Define Platinum in English

Platinum meaning in English

Meaning of Platinum in English

Pronunciation of Platinum in English

Platinum pronunciation in English

Pronounce Platinum in English

Platinum

see synonyms of platinum

Noun

1. atomic number 78, platinum, pt

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 deposits

WordNet Lexical Database for English. Princeton University. 2010.

Platinum

see synonyms of platinum
noun
1. 
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
2. 
a. 
a medium to light grey colour
b. 
(as adjective)
a platinum carpet

Collins English Dictionary. Copyright © HarperCollins Publishers

Platinum

see synonyms of platinum
noun
1. 
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
see the periodic table of elements in the Reference Supplement
adjective
2.  US
designating a record, tape, disc, video, etc. which has registered sales of a specified number, as two million, or value, as $1,000,000
platinum reflects a greater number or value than gold

Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.

Platinum

see synonyms of platinum
n.
A trademark for a certification indicating that a recording, such as an album of music, has sold a million copies.
n.
1. Symbol Pt A silver-white metallic element occurring in alluvial deposits in sperrylite and nickel ores, 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 1,768.2°C; boiling point 3,825°C; specific gravity 21.45 (20°C); valence 2, 3, 4. See Periodic Table.
2. A medium to light gray.

The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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