Definition of petcock in English:

petcock

Syllabification: pet·cock
Pronunciation: /ˈpetˌkäk
 
/

noun

  • A small valve, especially in the pipe of a steam boiler or cylinder of a steam engine for drainage or testing.
    More example sentences
    • They were fitted with a dial gauge, a vent port in the form of a petcock or counterweight, and a safety fuse.
    • This time I put a piece of tape over the petcock opening instead of using the screw on block off plate I had made to use on the first steps.
    • Steam for ten minutes, then shut off the steam by either closing the petcock or dropping the weight gauge into place.

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Pronunciation: skəʊʃ
noun
a small amount; a little