Dictionary

platinum

1platinum

noun, plat·i·num often attributive \ˈplat-nəm, ˈpla-tə-nəm\

: a heavy, silver-colored metal that is difficult to melt and that is used especially in expensive jewelry

Full Definition of PLATINUM

1
:  a precious grayish-white noncorroding ductile malleable heavy metallic element that fuses with difficulty and is used especially in chemical ware and apparatus, as a catalyst, and in dental and jewelry alloys — see element table
2
:  a moderate gray

Origin of PLATINUM

New Latin, from Spanish platina, from diminutive of plata silver — more at plate
First Known Use: 1808

2platinum

adjective

Definition of PLATINUM

:  qualifying for a platinum record
go platinum
:  to have enough sales to qualify for a platinum record

First Known Use of PLATINUM

1971

platinum

noun plat·i·num \ˈplat-nəm, -ən-əm\   (Medical Dictionary)

Medical Definition of PLATINUM

:  a heavy precious grayish white noncorroding ductile malleable metallic element that fuses with difficulty and is used especially in chemical ware and apparatus, as a catalyst, and in dental and jewelry alloys—symbol Pt; see element table

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