Meaning of mole

Definition of mole

(noun) the molecular weight of a substance expressed in grams; the basic unit of amount of substance adopted under the Systeme International d'Unites
a spy who works against enemy espionage
spicy sauce often containing chocolate
a small congenital pigmented spot on the skin
a protective structure of stone or concrete; extends from shore into the water to prevent a beach from washing away
small velvety-furred burrowing mammal having small eyes and fossorial forefeet

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