a gray-brown mixture consisting mainly of tryocidine and gramicidin,used as a topical antibiotic in treating infections caused by gram-positive bacteria

• 混合短杆菌肽，主要由短杆菌酪肽与短杆菌肽构成的一种灰棕色混合物，主要用来制造治疗因革兰氏阳性细菌造成的感染的抗生素