Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


relative molecular mass

noun [U] (also molecular weight) specialized
How to pronounce relative molecular mass noun in British English
How to pronounce relative molecular mass noun in American English
View dictionary definition of relative molecular mass »
(Pronunciation of relative molecular mass noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

Translations of “relative molecular mass”

Word of the Day


a good knowledge of something, or the fact that you know it so well

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More