Definition of relative molecular mass in English:

relative molecular mass

Line breaks: rela|tive mo¦lecu|lar mass

Entry from British & World English dictionary

noun

Chemistry
  • The ratio of the average mass of one molecule of an element or compound to one twelfth of the mass of an atom of carbon-12.

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Word of the day kerf
Pronunciation: kəːf
noun
a slit made by cutting with a saw