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。
词源
early 19th cent.: from Latin American Spanish， literally 'deposit， shoal'; related to placel 'sandbank'， from plaza 'a place'.
1
- 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。
2
- 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.
他是个定位球得分高手。
2.1
- a person who puts the material ready for firing in a pottery kiln装窑工。
3
- Brit. informal a dealer in stolen goods〈英, 非正式〉销赃者。