Emery

['em(ə)rɪ] or ['ɛməri]

解释:

(noun.) a hard grey-black mineral consisting of corundum and either hematite or magnetite; used as an abrasive (especially as a coating on paper).

校对:谢尔曼--From WordNet

解释:

(n.) Corundum in the form of grains or powder, used in the arts for grinding and polishing hard substances. Native emery is mixed with more or less magnetic iron. See the Note under Corundum.

手打:西摩

解释:

n. a very hard mineral a variety of corundum used as powder for polishing &c.—v.t. to rub or coat with emery.—ns. Em′ery-pā′per paper covered with emery-powder for polishing; Em′ery-pow′der ground emery; Em′ery-wheel a wheel coated with emery for polishing.

整理:昆廷