Etymology
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extinguisher (n.)

1550s, "one who extinguishes" in any sense, agent noun from extinguish. As a mechanical device for putting out fires, from 1887.

updated on April 28, 2020

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Definitions of extinguisher from WordNet

extinguisher (n.)
a manually operated device for extinguishing small fires;
Synonyms: fire extinguisher / asphyxiator
From wordnet.princeton.edu, not affiliated with etymonline.