colistin

Noun

 * 1)  A polymixin antibiotic effective against a range of gram-negative bacteria, sometimes considered a last-resort antibiotic.
 * 2) * 2016, "The superbug that doctors have been dreading just reached the U.S.", Washington Post, Lena H. Sun and Brady Dennis, May 26
 * It's the first time this colistin-resistant strain has been found in a person in the United States.

Coordinate terms

 * /mcr-1 a bacterial gene conferring resistance to colistin and polymyxins