annunciator

n. 通报者, 信号器 [化] 报讯器

词形变化

annunciators 复数 annunciators

释义与例句

n.
  1. 1.

    Anything that announces something.

  2. 2.

    Anything that announces something.

    An officer in the church of Constantinople, whose business it was to inform the people of the festivals to be celebrated.

  3. 3.

    A signalling device that shows which of several electrical circuits is active, especially such a device in a telephone switchboard.

  4. 4.

    A buzzer in a signal box that sounds when a train activates a treadle positioned on the track, and thus provides a warning or announcement of a nearby train.

    英国 交通

词汇关系

名词

上位词 1

indicator

词源

From Latin [Term?].

来源：wiktionary