1. A group of antibiotic peptides produced by the bacterium Bacillus brevis, used in topical antibacterial preparations and medical research.
Usage: technical; usually used in plural form; commonly found in medical and pharmaceutical contexts

Examples

• Gramicidins are often combined with other antibiotics in topical ointments.
• The research team studied how gramicidins disrupt bacterial cell membranes.
• Gramicidins have been used in wound care products for decades.
• The antibiotic properties of gramicidins make them valuable in clinical settings.
• Gramicidins work by forming pores in bacterial cell membranes, causing cell death.