molecular weight

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molecular weight

n.
The sum of the atomic weights of all the atoms in a molecule. Also called relative molecular mass.

molecular weight

n
(Chemistry) the former name for relative molecular mass

molec′ular weight′


n.
the average weight of a molecule of an element or compound measured in units based on 1/12 the weight of the carbon-12 atom; the sum of the atomic weights of all the atoms in a molecule. Abbr.: mol. wt.
[1875–80]

molecular weight

The sum of the atomic weights of the atoms contained in a molecule. For example, since the atomic weight of hydrogen is 1 and the atomic weight of oxygen is 16, the molecular weight of water (H2O) is 1 + 1 + 16, or 18.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.molecular weight - (chemistry) the sum of the relative atomic masses of the constituent atoms of a moleculemolecular weight - (chemistry) the sum of the relative atomic masses of the constituent atoms of a molecule
mass - the property of a body that causes it to have weight in a gravitational field
chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
Translations
References in periodicals archive ?
In addition, the weight average molecular weight ratio of the add blend to the transesterification blend was found to be significantly larger if the initial blending molecular weights were significantly different from one another.
w] determined by light scattering by the appropriate molecular weight ratio determined by GPC.

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