| 释义 |
plac·er
I. \ˈplāsə(r)\ noun
(-s)
Etymology: place (II) + -er
: one that places: as
a. : one that deposits or arranges
< bookbinder's placer >
< enamel kiln placer >
b. : one of the winners in a competition
< fifth placer in the … Miss America competition — Time >
II. \ˈplasə(r), -laas-\ noun
(-s)
Usage: often attributive
Etymology: Spanish, from Catalan, submarine plain, from plaza place, from Latin platea broad street — more at place
: an alluvial, lacustrine, marine, eolian, or glacial deposit (as of sand or gravel) containing particles of gold or other valuable mineral — compare lode
III. verb
(-ed/-ing/-s)
transitive verb
: to extract (minerals) from sand or gravel by washing
intransitive verb
: to work at placer mining |