rarefaction

n. 稀薄化, 稀薄 [医] 稀疏[状态], 疏松[状态]

词形变化

rarefactions 复数 rarefactions

别名

rarification

释义与例句

n.
  1. 1.

    A reduction in the density of a material, especially that of a fluid.

    稀疏

    疏松

    可数 不可数

词汇关系

名词

反义词 1

compaction

上位词 3

decrease drop-off lessening

词源

From Middle French raréfaction. By surface analysis, rarefy + -faction.

来源：wiktionary