"You canker blossom!" 3 Shakespearean Insults
late 14c., "one who promotes" (the interest of someone), "supporter," agent noun from promote, and also from Old French promoteur and directly from Medieval Latin promotor. Specific financial sense of "one who leads in forming a company" is from 1876; sense of "one who organizes sporting or entertainment events" is attested from 1936.
promoter pro·mot·er (prə-mō'tər)
A substance that increases the activity of a catalyst.
A DNA molecule to which RNA polymerase binds, initiating the transcription of mRNA.
A chemical that may promote carcinogenicity or mutagenicity.