gramicidin
11gramicidin — noun Etymology: gram positive + i + cide + 1 in Date: 1940 any of several toxic crystalline polypeptide antibiotics produced by a soil bacterium (Bacillus brevis) and used against gram positive bacteria in local infections …
12Gramicidin A — A linear peptide of alternate D and L amino acids that acts as a cation ionophore in lipid bilayer membranes. It is proposed that two molecules form a membrane spanning helix containing a pore lined with polar residues …
13gramicidin — noun A heterogeneous combination of six antibiotic compounds …
14gramicidin — One of a group of polypeptide antibiotics produced by Bacillus brevis that are primarily bacteriostatic in action against Gram positive cocci and bacilli. Commercial preparations contain several gramicidins known as g. A, B, C, and D; g. S (for… …
15gramicidin — n. antibiotic medicine …
16gramicidin — gram·i·ci·din …
17gramicidin — n. an antibiotic that acts against a wide range of bacteria. It is used in combination with other antibacterial drugs or steroids in topical preparations for the treatment of skin, ear, and eye infections …
18gramicidin — /græməˈsaɪdən/ (say gramuh suyduhn) noun an antibiotic which destroys Gram positive bacteria. See Gram s method. {Gram (positive) + i 1 + cid(e) + in2} …
19gramicidin — n. antibiotic produced by a bacterium and used against gram positive bacteria …
20gramicidin — noun an antibiotic produced by a soil bacterium; used chiefly as an antiseptic in treating local infections produced by Gram positive bacteria • Hypernyms: ↑antibiotic, ↑antibiotic drug, ↑antiseptic …
