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1. A glacial or alluvial deposit of sand or gravel containing eroded particles of valuable minerals.
2. A place where a placer deposit is washed to extract its mineral content.

[Spanish, shoal, placer, from Catalan placer, shoal, from plassa, place, from Medieval Latin placea; see place.]


(Mining & Quarrying)
a. surface sediment containing particles of gold or some other valuable mineral
b. (in combination): placer-mining.
[C19: from American Spanish: deposit, from Spanish plaza place]


(ˈplæs ər)

1. a natural concentration of heavy metal particles, as gold or platinum, in sand or gravel deposited by rivers or glaciers.
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.
[1835–45, Amer.; < American Spanish; Sp: sandbank < Catalan placel, derivative of plaza open place; see plaza]


(ˈpleɪ sər)

1. a person who places or arranges things.
2. one of the winners of a race or other contest.


A deposit of minerals, such as gold or magnetite, left by a river. The minerals are usually concentrated in one area because they are relatively heavy and therefore settle out of the river's currents more quickly than lighter sediments such as silt and sand. When mineral prospectors pan for gold, they look for placer deposits.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.placer - an alluvial deposit that contains particles of some valuable mineralplacer - an alluvial deposit that contains particles of some valuable mineral
alluvial deposit, alluvial sediment, alluvium, alluvion - clay or silt or gravel carried by rushing streams and deposited where the stream slows down
References in periodicals archive ?
Officials with One Gro and an associated limited- liability company, Placido Investments, on Dec.
OPERA singer Placido Domingo moves in a superstar world - but he has a British granddaughter whose life is on a totally different scale.
said SFO1 Fredmar Placido of the Bureau of Fire Protection.
The 37-year-old former model, who is at war with James Placido, was arrested on June 4 and charged on Tuesday by Essex police.
Placido talked in solitude with a soul meant solely to keep him company each afternoon when he'd come from El Leon de Oro, bordering the river, to my house, but never before stopping to see the fighting cocks at Jesus Alvarez's.
Jose Placido, Global Head of Client Development at BNP Paribas Securities Services, said:I am delighted to welcome Patrick to BNP Paribas.
While tickets for the Dubai Opera's opening concert by Placido Domingo have already sold out, the World Classical Music Series has announced La Vie en Rose, a concert on May 13 featuring French soprano Sara Gouzy and Joel Prieto, a Spanish tenor (he won all three prizes at Placido Domingo's Operalia Competition in 2008).
In which capital city was the tenor Placido Domingo born in 1941?
GuliAnd Productions work with the great operatic maestros such as Placido Domingo and organise large-scale opera events across Europe.
A sus practicamente 75 anos (los cumple en dos meses, el 21 de enero), Placido Domingo es hoy por hoy, sin duda, la figura mas importante e influyente de la opera mundial.
New Delhi, Dec 6 ( ANI ): Former Indian diplomat Placido D'Souza has remembered former South African President Nelson Mandela, who passed away last night.