A gray-brown mixture consisting mainly of tryocidine and gramicidin, used as a topical antibiotic in treating infections caused by gram-positive bacteria.
A substance obtained from the bacterium Bacillus brevis, composed chiefly of the polypeptide antibiotics tryocidine and gramicidin and used for topical treatment of infections caused by gram-positive bacteria.
Origin of tyrothricin
- New Latin Tȳrothrix former bacteria genus name (Greek tūros cheese teuə- in Indo-European roots) (Greek thrix trikh- hair) –in
From American Heritage Dictionary of the English Language, 5th Edition