Noun
colistin (usually uncountable, plural colistins)
(medicine) A polymixin antibiotic effective against a range of gram-negative bacteria, sometimes considered a last-resort antibiotic.
In recent years with the rise of multidrug resistance, we’ve had to reintroduce colistin to combat bacteria that now resists more conventional antibiotics. Source: Internet
The discovery was described as "alarming" by scientists, who called for urgent restrictions on the use of polymyxins - a class of antibiotics that includes the drug colistin and is widely used in livestock farming. Source: Internet
We modified colistin with an agent that attracts antibodies onto the surface of the bacteria and built a compound that both directly kills bacteria and at the same time induces an immune-response.” Source: Internet