Webster's Revised Unabridged Dictionary · 1913

firebug

firebug , noun

a criminal who illegally sets fire to property; an arsonist.

2.

a brightly colored type of true bug that can exude a stain.

Text from the public-domain GNU Collaborative International Dictionary of English, derived from Webster's Revised Unabridged Dictionary (1913). Definitions marked with were added by later GCIDE contributors and are not in the original 1913 edition.

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