Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun physics A quantum number of quarks & hadrons, determined by the number(s) of bottom quarks & antiquarks present. Symbol B.

Etymologies

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Examples

  • "The rock-bottomness of one's self-concern isn't a matter of selfishness; it's a matter of basic metaphysics.

    Anecdotal Evidence 2008

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