relative molecular mass

noun

1. r.m.m..  Mr. Former name: molecular weight. the sum of all the relative atomic masses of the atoms in a molecule; the ratio of the average mass per molecule of a specified isotopic composition of a substance to one-twelfth the mass of an atom of carbon-12

relative molecular mass

1. See molecular weight

Example Sentences

The gene has an ORF encoding a polypeptide of 378 amino acids with a relative molecular mass of 40,415 daltons.

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