Mole vs. Molecule — What's the Difference?

A small burrowing mammal with dark velvety fur, a long muzzle, and very small eyes, feeding mainly on worms, grubs, and other invertebrates.

A molecule is an electrically neutral group of two or more atoms held together by chemical bonds. Molecules are distinguished from ions by their lack of electrical charge.

A spy who gradually achieves an important position within the security defences of a country

The smallest particle of a substance that retains the chemical and physical properties of the substance and is composed of two or more atoms; a group of like or different atoms held together by chemical forces.

A small, often slightly raised blemish on the skin made dark by a high concentration of melanin

A small particle; a tiny bit.

A large solid structure on a shore serving as a pier, breakwater, or causeway.

(chemistry) The smallest particle of a specific element or compound that retains the chemical properties of that element or compound; two or more atoms held together by chemical bonds.

The SI unit of amount of substance, equal to the quantity containing as many elementary units as there are atoms in 0.012 kg of carbon-12.

A tiny amount.

An abnormal mass of tissue in the uterus.

One of the very small invisible particles of which all ordinary matter is supposed to consist.

A highly spiced Mexican sauce made chiefly from chilli peppers and chocolate, served with meat.

The smallest part of any substance which possesses the characteristic properties and qualities of that substance, and which can exist alone in a free state.

A skin lesion, commonly a nevus, that is typically raised and discolored.

A group of atoms so united and combined by chemical affinity that they form a complete, integrated whole, being the smallest portion of any particular compound that can exist in a free state; as, a molecule of water consists of two atoms of hydrogen and one of oxygen. Cf. Atom.

Any of various small insectivorous mammals of the family Talpidae of North America and Eurasia, usually living underground and having a thickset body with light brown to dark gray silky fur, strong forefeet for burrowing, and often rudimentary eyes.

(physics and chemistry) the simplest structural unit of an element or compound

A machine that bores through hard surfaces, used especially for tunneling through rock.

(nontechnical usage) a tiny piece of anything

A spy who operates from within an organization, especially a double agent operating against that agent's 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.

In the International System, the base unit used in representing an amount of a substance, equal to the amount of that 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 6.0221 × 1023, or Avogadro's number. See Table at measurement.

A pigmented spot on the skin, a naevus, slightly raised, and sometimes hairy.

Any of several small, burrowing insectivores of the family Talpidae; also any of southern African mammals in the family Chrysochloridae (golden moles) and any of several Australian mammals in the family Notoryctidae (marsupial moles), similar to but not closely related to Talpidae moles

Any of the burrowing rodents also called mole-rats.

(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.

A kind of self-propelled excavator used to form underground drains, or to clear underground pipelines

A type of underground drain used in farm fields, in which a mole plow creates an unlined channel through clay subsoil.

A moll, a bitch, a slut.

(nautical) A massive structure, usually of stone, used as a pier, breakwater or junction between places separated by water.

(rare) A haven or harbour, protected with such a breakwater.

(historical) An Ancient Roman mausoleum.

In the International System of Units, the base unit of amount of substance; the amount of substance of a system which contains exactly 6.02214076×10²³ elementary entities (atoms, ions, molecules, etc.). Symbol: mol. The number of atoms is known as Avogadro’s number. from 1897

A hemorrhagic mass of tissue in the uterus caused by a dead ovum.

One of several spicy sauces typical of the cuisine of Mexico and neighboring Central America, especially a sauce which contains chocolate and which is used in cooking main dishes, not desserts.

A spot; a stain; a mark which discolors or disfigures.

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.

A mass of fleshy or other more or less solid matter generated in the uterus.

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.

Any insectivore of the family Talpidæ. They have minute eyes and ears, soft fur, and very large and strong fore feet.

A plow of peculiar construction, for forming underground drains.

A spy who lives for years an apparently normal life (to establish a cover) before beginning his spying activities.

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; as, he added two moles of sodium chloride to the medium.

To form holes in, as a mole; to burrow; to excavate; as, to mole the earth.

To clear of molehills.

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