gramicidin

noun gram·i·ci·din \ ˌgra-mə-ˈsī-dᵊn \

Definition of gramicidin

:any of several toxic crystalline polypeptide antibiotics produced by a soil bacterium (Bacillus brevis) and used against gram-positive bacteria in local infections

Origin and Etymology of gramicidin

gram-positive + -i- + -cide + 1-in


Medical Dictionary

gramicidin

noun gram·i·ci·din \ ˌgram-ə-ˈsīd-ᵊn \

medical Definition of gramicidin

:an antibacterial mixture produced by a soil bacterium of the genus Bacillus (B. brevis) and used topically against gram-positive bacteria in local infections especially of the eye

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