mole

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A small congenital growth on the human skin, usually slightly raised and dark and sometimes hairy, especially a pigmented nevus.
2. n. 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.
3. n. A machine that bores through hard surfaces, used especially for tunneling through rock.
4. n. A spy who operates from within an organization, especially a double agent operating against his or her own government from within its intelligence establishment.
5. n. A massive, usually stone wall constructed in the sea, used as a breakwater and built to enclose or protect an anchorage or a harbor.
6. n. The anchorage or harbor enclosed by a mole.
7. n. A fleshy abnormal mass formed in the uterus by the degeneration or abortive development of an ovum.
8. n. The amount of a substance that contains as many atoms, molecules, ions, or other elementary units as the number of atoms in 0.012 kilogram of carbon 12. The number is 6.0225 × 10²³, or Avogadro's number. Also called gram molecule.
9. n. The mass in grams of this amount of a substance, numerically equal to the molecular weight of the substance. Also called gram-molecular weight. See Table at measurement.
10. n. Any of various spicy sauces of Mexican origin, usually having a base of onion, chilies, nuts or seeds, and unsweetened chocolate and served with meat or poultry.

Century Dictionary and Cyclopedia

1. n. A spot; a stain, as on a garment.
2. n. Specifically.
3. n. A small permanent abnormal spot on the surface of the human body, usually of a dark color and slightly elevated, and often hairy; a pigmentary nævus; also, a vascular nævus See nævus.
4. To spot or stain.
5. n. An insectivorous mammal of the family Talpidæ (which see for technical characters). There are at least 7 genera of moles, of which Talpa, Mogera, Parascaptor, and Scaptochirus are confined to the Old World, and Condylura, Scalops, and Scapanus to America. The several species are much a like in general appearance and habits, all living under ground, where they burrow with wonderful facility, and construct galleries often of great extent and complexity. They are stout thick-set animals, usually 6 or 8 inches long, with very small or rudimentary eyes and ears, sharp snout, no visible neck, strong and highly fossorial fore feet, and short tail. They feed chiefly upon earthworms. The best-known is the common mole of Europe, Talpa europæa. The Japanese mole is Mogera wogura. All the American moles differ decidedly from those of Europe and Asia; they are called shrew-moles, and the commonest is Scalops aquaticus, of wide distribution in the United States. The American moles of the genus Scapanus are nearest those of the Old World. There are two of these, the hairy-tailed or Brewer's (S. americanus or breweri) and S. townsendi; the latter is confined to western portions of the continent. The star-nosed mole of North America is Condylura cristata. See cuts under Talpa, Scalops, and Condylura.
6. n. A kind of plow or other implement drawn or driven through the subsoil in making drains; a mole-plow.
7. n. The rodent bathyergue or mole-rat of South Africa, Bathyergus maritimus.
8. To clear of molehills.
9. To burrow or form holes in, as a mole: as, to mole the earth.
10. To destroy moles.
11. n. A mound or massive work, formed largely of stone, inclosing a harbor or anchorage, to protect it from the violence of the waves.
12. n. A form of ancient Roman mausoleum, consisting of a round tower on a square base, insulated, encompassed with columns, and covered with a dome.
13. n. A somewhat shapeless, compact fleshy mass occurring in the uterus, either due to the retention and continued life of the whole or a part of the fetal envelops after the death of the fetus (a maternal or true mole), or being some other body liable to be mistaken for this, as the membrane in membranous dysmenorrhea, or perhaps a polypus (a false mole).
14. n. Coarse meal mixed with salt, in ancient times used in sacrifices.
15. To speak.

Wiktionary

1. n. chemistry, physics In the International System of Units, the base unit of amount of substance; the amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kg of carbon-12. Symbol: mol. The number of atoms is known as Avogadro’s number
2. n. A moll, a bitch, a slut.
3. n. A pigmented spot on the skin, a naevus, slightly raised, and sometimes hairy.
4. n. rare A haven or harbour, protected with such a breakwater.
5. n. A hemorrhagic mass of tissue in the uterus caused by a dead ovum.
6. n. Any of several small, burrowing insectivores of the family Talpidae.
7. n. Any of the burrowing rodents also called mole rats.
8. n. espionage An internal spy, a person who involves himself or herself with an enemy organisation, especially an intelligence or governmental organisation, to determine and betray its secrets from within.

GNU Webster's 1913

1. n. obsolete A spot; a stain; a mark which discolors or disfigures.
2. n. A spot, mark, or small permanent protuberance on the human body; esp., a spot which is dark-colored, from which commonly issue one or more hairs.
3. n. A mass of fleshy or other more or less solid matter generated in the uterus.
4. n. A mound or massive work formed of masonry or large stones, etc., laid in the sea, often extended either in a right line or an arc of a circle before a port which it serves to defend from the violence of the waves, thus protecting ships in a harbor; also, sometimes, the harbor itself.
5. n. (Zoöl.) Any insectivore of the family Talpidæ. They have minute eyes and ears, soft fur, and very large and strong fore feet.
6. n. U.S. A plow of peculiar construction, for forming underground drains.
7. n. A spy who lives for years an apparently normal life (to establish a cover) before beginning his spying activities.
8. n. A quantity of a substance equal to the molecular weight of a substance expressed in grams; a gram molecule; the basic unit of amount of substance adopted under the System International d'Unites.
9. v. To form holes in, as a mole; to burrow; to excavate.
10. v. Prov. Eng. To clear of molehills.

WordNet 3.0

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