molecular weight love

molecular weight


from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The sum of the atomic weights of all the atoms in a molecule. Also called formula weight.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. the sum of the atomic weights of every atom in a molecule

from the GNU version of the Collaborative International Dictionary of English

  • adj. the weight of a molecule of any gas or vapor as compared with the hydrogen atom having weight of 1 as a standard; the sum of the atomic weights of the constituents of a molecule. For more precise measurements, the weight of the carbon isotope carbon-12 is used as the standard, that isotope having the value of 12.000. In this systen, now used almost universally, the hydrogen atom has a weight of 1.0079.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. (chemistry) the sum of the relative atomic masses of the constituent atoms of a molecule


Sorry, no etymologies found.


  • Ribonucleic acid, a nucleic acid of high molecular weight that synthesizes proteins and acts in cell replication.

    Alcohol and The Addictive Brain

  • This extract had a molecular weight twice that of the extracts used by Hughes, Terenius, and Snyder, but all were peptides made up from amino acids.

    Alcohol and The Addictive Brain

  • Lars Terenius and Agneta Wahlstrom stated that they had isolated a material with the same molecular weight from the cerebral spinal fluid of nonaddicted humans.

    Alcohol and The Addictive Brain


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