petcock

[机] 扭塞, 小塞

发音

UK /ˈpɛtkɒk/

词形变化

petcocks 复数 petcocks

释义与例句

n.
  1. 1.

    A small valve, spout, or faucet operated by hand, usually used to release pressure or drain fluid.

    The shutoff valve (petcock) is usually located on the gas pipe on the supply side of the meter.

词汇关系

名词

上位词 1

regulator

词源

Apparently from pet + cock, because of its size.

来源：wiktionary