n.
Pronunciation: ' plat-n ə m, ' pla-t ə -n ə m
Function: noun
Usage: often attrib
Etymology: New Latin, from Spanish platina, from diminutive of plata silver ― more at PLATE
Date: 1808
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