molecule (redirected from Polyatomic molecules)

molecule /mol·e·cule/ (mol´ĕ-kūl) a small mass of matter; the smallest amount of a substance which can exist alone; an aggregation of atoms, specifically a chemical combination of two or more atoms forming a specific chemical substance.molec´ular

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mol·e·cule (ml-kyl)

n.

The smallest particle into which an element or a compound can be divided without changing its chemical and physical properties; a group of atoms that is held together chemically.

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molecule

[mol′əkyo̅o̅l]

Etymology: L, molecula, small mass

the smallest unit that exhibits the properties of an element or compound. A molecule is composed of two or more atoms that are covalently bonded. See also atom, compound.

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molecule [mol´ĕ-kūl]

a group of atoms joined by chemical bonds; the smallest amount of a substance that possesses its characteristic properties.

adhesion m's (cell adhesion m's (CAM)) cell surface glycoproteins that mediate intercell adhesion in vertebrates.

middle molecule any molecule that has an atomic mass between 350 and 2000 daltons; these accumulate in the body fluids of patients with uremia.

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molecule,

n the smallest unit of a chemical compound; comprises atoms joined with chemical bonds. See also atom and compound.

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molecule,

n a unit of matter that is the smallest particle of an element or chemical combination of atoms (as a compound) capable of retaining chemical identity with the substance in mass.

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molecule

a group of atoms joined by chemical bonds; the smallest amount of a substance that possesses its characteristic properties.