Definition of anaconda
: a large semiaquatic constricting snake (Eunectes murinus) of the boa family of tropical South America that may reach a length of 30 feet (9.1 meters)
broadly
: any of the large constricting snakes
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Merriam-Webster unabridged
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Time Traveler for anaconda
The first known use of anaconda was in 1748
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