cofferdam

n. 围堰, 隔离舱, 潜水箱

发音

US /ˈkɑ.fɚ.dæm/
UK /ˈkɒ.fə.dæm/

词形变化

cofferdams 复数 cofferdams

别名

coffer dam coffer-dam

释义与例句

n.
  1. 1.

    A temporary watertight enclosure used to create a dry foundation for building bridges and other structures over water.

    工程
  2. 2.

    An empty space that acts as a protective barrier between two floors or bulkheads on a ship.

    航海 交通
  3. 3.

    Synonym of dental dam (“barrier to keep the teeth dry during dental work”) (dental sense).

    废旧 医学

词汇关系

名词

同义词 1

caisson

上位词 1

chamber

词源

From coffer + dam. The dental dam sense was introduced in English by dentist Sanford Christie Barnum at New York City in 1864 (by metaphor), but after his century it was maintained only in languages other than English (for example, German Kofferdam as a loanword from 19th-century English).

来源：wiktionary