Adjective "Molecule" definition and examples

(Molecule may not be an adjective, but it can be used as an adjective, click here to find out.)



Definitions and examples


A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
  1. 'This electricity splits the water molecules in an electrolyte, producing hydrogen.'
  2. 'The reactant ions have enough energy to ionise the molecules of interest but not enough to break them up.'

More definitions


1. Chemistry, Physics. the smallest physical unit of an element or compound, consisting of one or more like atoms in an element and two or more different atoms in a compound.

2. Chemistry. a quantity of a substance, the weight of which, measured in any chosen unit, is numerically equal to the molecular weight; gram molecule.

3. any very small particle.


(molecule)Late 18th century: from French molécule, from modern Latin molecula, diminutive of Latin moles ‘mass’.