malm

n. 白垩土

发音

其它 /mɑːm/

词形变化

malms 复数 malms

释义与例句

n.
  1. 1.

    A soft, crumbly, chalky, grayish limestone.

    可数 不可数 地质
  2. 2.

    An artificial mixture of chalk, clay, and sand, from which light-brown or yellowish bricks are made.

    可数 不可数

词源

From Middle English malme (“sand”), from Old English mealm (as in mealmstān (“sandstone”)), from Proto-Germanic *malmaz (“sand, ore”); related to Old Norse malmr (“ore, metal”). From the same Proto-Indo-European root as meal.

来源：wiktionary