platin-
(ˈplætɪn)
combining form of platinum before a vowel, in names of chemical compounds, as platinamine, an amine of platinum; platinammonium, a compound of platinum and ammonium; platiniridium.
| 1856 W. A. Miller Elem. Chem. II. 1066 Salts of Platinamine. 1873 Watts Fownes' Chem. (ed. 11) 349 Platinum tetrachloride absorbs four molecules of ammonia, forming platinammonium chloride. |