[often as modifier]a deposit of sand or gravel in the bed of a river or lake, containing particles of valuable minerals 砂矿,砂积矿床 placer gold deposits. 砂积金矿。
语源
early 19th cent.: from Latin American Spanish, literally deposit, shoal'; related to placel 'sandbank', from plaza 'a place'
placer2 noun
[with modifier]a person or animal gaining a specified position in a competition or race (竞赛或赛跑中)获得名次者 last year's fifth placer had a good run. 去年的第五名跑得不错。
a person who positions, sets, or arranges something 安放者,放置者,安置者 he was a shrewd placer of the ball. 他是个高明的传球手。 ■a person who puts the material ready for firing in a pottery kiln 装窑工
(Brit. informal)a dealer in stolen goods (英,非正式)销赃者