rare earth

短语

稀土

词形变化

rare earths 复数 rare earths

别名

RE

释义与例句

n.
  1. 1.

    Any of the naturally occurring oxides of the lanthanide metals; they are widely distributed in relatively small concentrations and are used in glassmaking, ceramic glazes etc.

    稀土

    化学

    Meronyms: rare earth element, rare earth metal

  2. 2.

    A rare earth element.

    Near-synonym: lanthanide

词汇关系

名词

同义词 3

lanthanide lanthanoid rare earth element

上位词 2

group grouping

词源

From rare + earth. First use appears c. 1841 in the publications of Henry Minchin Noad. See cite below.

来源：wiktionary