Definitions for davy lamp
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Princeton's WordNet
safety lamp, Davy lamp(noun)
an oil lamp that will not ignite flammable gases (methane)
Wiktionary
Davy lamp(Noun)
A minersu2019 lamp or safety lamp used in coal mines to warn against methane (firedamp).
Origin: after Sir Humphry Davy
Webster Dictionary
Davy lamp
see Safety lamp, under Lamp
Citation
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"davy lamp." Definitions.net. STANDS4 LLC, 2013. Web. 18 Jun 2013. <http://www.definitions.net/definition/davy lamp>.

