specific epithet

/S P AH0 S IH1 F IH0 K EH0 P AH0 TH EH0 T/
noun
  1. 1

    The second (uncapitalized) word in the scientific name of a species, following the name of the genus.

    โ€œIn Cannabis sativa the word sativa is the specific epithet.โ€

Source: https://en.wiktionary.org/wiki/specific%20epithet