1. • noun - the molecular weight of a substance expressed in grams
   • noun - a spy who works against enemy espionage
   • noun - spicy sauce often containing chocolate
   • noun - a small congenital pigmented spot on the skin
   • noun - a protective structure of stone or concrete
   • noun - small velvety-furred burrowing mammal having small eyes and fossorial forefeet
2. • A small congenital growth on the human skin, usually slightly raised and dark and sometimes hairy, especially a pigmented nevus.
   • Any of various small, insectivorous mammals of the family Talpidae, usually living underground and having thickset bodies with light brown to dark gray silky fur, rudimentary eyes, tough muzzles, and strong forefeet for burrowing.
   • A machine that bores through hard surfaces, used especially for tunneling through rock.
   • A spy who operates from within an organization, especially a double agent operating against his or her own government from within its intelligence establishment.
   • A massive, usually stone wall constructed in the sea, used as a breakwater and built to enclose or protect an anchorage or a harbor.
   • The anchorage or harbor enclosed by a mole.
   • A fleshy, abnormal mass formed in the uterus by the degeneration or abortive development of an ovum.
   • The amount of a substance that contains as many atoms, molecules, ions, or other elementary units as the number of atoms in 0.
   • See Table at measurement.
   • A spicy sauce of Mexican origin, made with unsweetened chocolate and a variety of chilies and spices and usually served with meat or poultry.
3. • n - the quantity of a compound that has a weight equal to the compound's molecular weight

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