The six metals platinum, palladium, ruthenium, osmium, rhodium, and iridium, which have similar properties and tend to occur together in nature.
〔化〕铂系金属（铂、钯、钌、锇、铑、铱六种金属，具有类似特征，在自然界中常同时出现）
Example sentencesExamples
The catalytic converter mixes these gases with air and then passes them over a catalyst made of rhodium and platinum metals.
The platinum metals tend to occur together in nature and are relatively difficult to separate from each other.
Tennant was studying a new mineral that contained a number of platinum metals and discovered a black powder that other chemists had also seen, but had not analyzed.
The rising gold price is still having a knock-on effect on other commodities - silver rose to an 18-year high on Friday, while platinum metals were also rising.
He had perfected the powder method of preparing malleable platinum and established the platinum metals industry.
Definition of platinum metals in US English:
platinum metals
plural noun
Chemistry
The six metals platinum, palladium, ruthenium, osmium, rhodium, and iridium, which have similar properties and tend to occur together in nature.
〔化〕铂系金属（铂、钯、钌、锇、铑、铱六种金属，具有类似特征，在自然界中常同时出现）
Example sentencesExamples
The catalytic converter mixes these gases with air and then passes them over a catalyst made of rhodium and platinum metals.
The platinum metals tend to occur together in nature and are relatively difficult to separate from each other.
Tennant was studying a new mineral that contained a number of platinum metals and discovered a black powder that other chemists had also seen, but had not analyzed.
The rising gold price is still having a knock-on effect on other commodities - silver rose to an 18-year high on Friday, while platinum metals were also rising.
He had perfected the powder method of preparing malleable platinum and established the platinum metals industry.