Definition of molecules Molecules

/mɑˈlʌkjuˌlz/ - [malukyulz] -

We found 3 definitions of molecules from 2 different sources.

What does molecules mean?

Wiktionary

molecules (Noun)
Plural of molecule.

Part of speech

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molecules, noun, plural of molecule.

WordNet

Noun Plural: molecules
molecule - (physics and chemistry) the simplest structural unit of an element or compound
		building block, unit a block of material used in construction work
		natural philosophy, physics the science of matter and energy and their interactions; "his favorite subject was physics"
		chemical science, chemistry the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
		chemical chain, chain a series of (usually metal) rings or links fitted into one another to make a flexible ligament
		dipole molecule a molecule that is a permanent dipole
		protein molecule any large molecule containing chains of amino acids linked by peptide bonds
		atom (nontechnical usage) a tiny piece of anything
		chemical group, group, radical any number of entities (members) considered as a unit
		coenzyme a small molecule (not a protein but sometimes a vitamin) essential for the activity of some enzymes
		edta, ethylenediaminetetraacetic acid a complex molecule used medically to chelate metal ions in cases of lead or heavy metal poisoning
molecule - (nontechnical usage) a tiny piece of anything
		atom, particle, corpuscle, mote, speck
		material, stuff things needed for doing or making something; "writing materials"; "useful teaching materials"
		grain the direction, texture, or pattern of fibers found in wood or leather or stone or in a woven fabric; "saw the board across the grain"
		grinding a harsh and strident sound (as of the grinding of gears)
		chylomicron a microscopic particle of triglycerides produced in the intestines during digestion; in the bloodstream they release their fatty acids into the blood
		flyspeck a tiny dark speck made by the excrement of a fly

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Wiktionary

molecule (Noun)
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.
molecule (Noun)
A tiny amount.

Webster DictionaryWebster's Unabridged Dictionary 📘

molecule (n.)
One of the very small invisible particles of which all matter is supposed to consist.
molecule (n.)
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.
molecule (n.)
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.

OmegaWiki DictionaryOmegaWiki Dictionary Ω

molecule
A group of atoms in a definite arrangement held together by chemical bonds.

Electrical DictionaryThe Standard Electrical Dictionary 💡

molecule
The smallest particle of matter that can exist alone. It is made up of atoms, but an atom can never exist alone, but only, with one or two possible exceptions, combined with one or more other atoms as a molecule. The molecules under present conditions are not in constant contact with each other, but are perpetually vibrating through paths, in solids probably in defined paths, in liquids and gases in perpetually new paths. The molecules collide with each other and rebound. This motion is the kinetic motion termed heat. At the absolute zero--minus In the gaseous state the molecules of most substances occupy the same volume; those of a few elements occupy one-half and of others twice the normal volume. The mean free path of the molecule of hydrogen is about the collisions in hydrogen are about 17,750 millions per second; the diameter is about 8/10,000,000 mm. (8/254,000,000 inch) ; A particle of matter 1/4,000 mm. (1/102,000 inch) contains, it is supposed, about to deprive the subject of much of its interest. A Sprengel pump, such as used for exhausting Geissler tubes, or incandescent lamp bulbs, may leave only one hundred-millionth (1/100,000,000,) of an atmosphere present, giving the molecules a capability of an average free path of vibration 33 feet long.

Wikipedia

A molecule is the smallest amount of a chemical substance that can exist. If a molecule were split into smaller pieces, it would be a different substance.

Molecules are made up of atoms that are stuck together in a particular shape. Not all combinations of atoms are possible; atoms like certain shapes, but not others. For example, oxygen atoms always have two bonds with other atoms, carbon atoms always have four bonds with other atoms, and nitrogen atoms always have three bonds with other atoms.

In gases like air, the molecules are just flying around. In liquids like water, the molecules are stuck together but they can still move. In solids like sugar, the molecules can only vibrate.

With a molecular formula, you can write down the numbers of all atoms in a molecule. For example, the molecular formula of sugar is C6H12O6. That means that one molecule of sugar is made up of six carbon atoms, twelve hydrogen atoms and six oxygen atoms.