Masticophis flagellum
coachwhip
noun
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A long whip used by the driver of a horse-drawn coach.
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Masticophis flagellum, a colubrid snake of North America.
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Fouquieria splendens (ocotillo).
How often have the words Masticophis flagellum and coachwhip occurred in a corpus of books? (source: Google Ngram Viewer )