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ampulla of Lorenzini

[lawr-uh n-zee-nee] /ˌlɔr ənˈzi ni/
noun, Ichthyology
any of an array of electroreceptors in the head of sharks, skates, and rays capable of detecting weak electrical signals produced by muscular activity in other creatures.
after Italian physician Stefano Lorenzini (flourished 1678), who first described them Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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