Pronunciation: (plas'ur),[key] —n.Mining. 1. a surficial mineral deposit formed by the concentration of small particles of heavy minerals, as gold, rutile, or platinum, in gravel or small sands.
2. the site of a form of mining (plac'er min"ing) in which a placer deposit is washed to separate the gold or other valuable minerals.
Pronunciation: (plā'sur),[key] —n. 1. a person who sets things in their place or arranges them.
2. a person or animal that is among the winners of a race or other contest.