bentonite

n. <美>[地质]斑脱土(火山灰分解成的一种粘土)

词形变化

bentonites 复数 bentonites

释义与例句

n.
  1. 1.

    Any of several impure clay minerals consisting mostly of montmorillonite.

    可数 不可数 化学 地质
  2. 2.

    A porous clay formed by the decomposition of volcanic ash that swells 5 to 6 times its original volume in the presence of water.

    可数 不可数

词汇关系

名词

上位词 1

clay

相关短语

potassium bentonite potash bentonite

词源

From Benton + -ite, after the place where it was first mined: Fort Benton, Montana.

来源：wiktionary