英语词汇“molecular weight”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

molec′ular weight′, [Chem.]

Chemistrythe average weight of a molecule of an element or compound measured in units once based on the weight of one hydrogen atom taken as the standard or on ¹⁄₁₆ the weight of an oxygen atom, but after 1961 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. Also called formula weight.

molecular weight n

单词	molecular weight
释义	WordReference Random House Unabridged Dictionary of American English © 2024 molec′ular weight′, [Chem.] Chemistrythe average weight of a molecule of an element or compound measured in units once based on the weight of one hydrogen atom taken as the standard or on ¹⁄₁₆ the weight of an oxygen atom, but after 1961 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. Also called formula weight. 1875–80 Collins Concise English Dictionary © HarperCollins Publishers:: molecular weight n the former name for relative molecular mass
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