noun Etymology: International Scientific Vocabulary, from New Latin polymyxa, from poly- + Greek myxa mucus — more at mucus Date: 1947 any of several toxic antibiotics obtained from a soil bacterium (Bacillus polymyxa) and active against gram-negative bacteria

New Collegiate Dictionary. 2001.

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  • polymyxin — [päl΄i mik′sin] n. [< ModL ( Bacillus) polymyx( a) (< poly , POLY + myxa < Gr myxa, MUCUS) + IN1] any of various antibiotics obtained from strains of a soil bacterium (Bacillus polymyxa), esp. effective against Gram negative bacteria …   English World dictionary

  • Polymyxin — Polymyxins are antibiotics,cite journal |author=Dixon RA, Chopra I |title=Polymyxin B and polymyxin B nonapeptide alter cytoplasmic membrane permeability in Escherichia coli |journal=J. Antimicrob. Chemother. |volume=18 |issue=5 |pages=557–63… …   Wikipedia

  • polymyxin — /pol ee mik sin/, n. Pharm. any of various polypeptide antibiotics derived from Bacillus polymyxa. [1945 50; < NL polymyx(a) specific epithet ( < Gk poly POLY + mýxa mucus, slime) + IN2] * * * ▪ drug       any of five polypeptide antibiotics… …   Universalium

  • polymyxin — polimiksinas statusas T sritis chemija apibrėžtis Ciklinis peptidas, antibiotikas. atitikmenys: angl. polymyxin rus. полимиксин …   Chemijos terminų aiškinamasis žodynas

  • polymyxin — noun Any of several toxic antibiotics, derived from the soil bacterium Bacillus polymyxa, used to treat infections by gram negative bacteria …   Wiktionary

  • polymyxin — A mixture of antibiotic substances obtained from cultures of Bacillus polymyxa (B. serosporus), an organism found in water and soils and obtainable as a crystalline hydrochloride; all are polypeptides containing various amino acid s and a… …   Medical dictionary

  • polymyxin — poly·myx·in …   English syllables

  • polymyxin — noun any of several toxic antibiotics obtained from a particular soil bacterium • Hypernyms: ↑antibiotic, ↑antibiotic drug …   Useful english dictionary

  • polymyxin B — n the least toxic of the polymyxins used in the form of its sulfate chiefly in the treatment of some localized, gastrointestinal, or systemic infections * * * an antibiotic used to treat severe infections caused by Gram negative bacteria.… …   Medical dictionary

  • polymyxin E — n COLISTIN …   Medical dictionary

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