Century Dictionary and Cyclopedia
- n. An instrument for indicating the presence of gas in buildings, mines, etc.
- n. dated An apparatus for detecting the presence of dangerous gas, as for example in a mine or in a house.
GNU Webster's 1913
- n. An apparatus for detecting the presence of any dangerous gas, from a gas leak in a coal mine or a dwelling house.
- See gas and -scope. (Wiktionary)
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