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mole
Nounmole has 6 senses
gram molecule, mole, mol - the molecular weight of a substance expressed in grams; the basic unit of amount of substance adopted under the Systeme International d'Unites --1is a kind ofmetric weight unit, weight unit
breakwater, groin, groyne, mole, bulwark, seawall, jetty - a protective structure of stone or concrete; extends from shore into the water to prevent a beach from washing away --5is a kind ofbarrier