from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A name having two parts.
  • n. A scientific name at the rank of species, with two terms: a generic name and a specific name.


Latin bis ("double, twice") + nōmen ("name"). (Wiktionary)



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  • In taxonomy, the two-word combination of a generic name and specific name to make a species name. Homo sapiens is a binomen. Binominal names are italicized since they are considered to be Latin.

    November 2, 2007