Also found in: Thesaurus, Medical, Encyclopedia.


 (strĕp′tə-thrī′sĭn, -thrĭs′ĭn)
Any of a group of antibiotics produced by an actinomycete (Streptomyces lavendulae) and active against both gram-positive and gram-negative bacteria and some fungi.

[New Latin Streptothrix, Streptothric-, former genus name of the actinomycete producing it (strepto- + Greek thrix, trikh-, hair) + -in.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Pharmacology) an antibiotic active against bacteria and some fungi, produced by the bacterium Streptomyces lavendulae
[from Streptothrix, genus name of bacteria (from strepto- + Greek thrix hair + -in)]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.streptothricin - a basic antibiotic derived from a soil actinomycete
antibiotic, antibiotic drug - a chemical substance derivable from a mold or bacterium that can kill microorganisms and cure bacterial infections; "when antibiotics were first discovered they were called wonder drugs"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
(4) Examples of antibiotics from Actinobacteria include streptomycin, streptothricin, and actinomycin.
pSAWWU4229_1 contained additional antibiotic drug resistance genes encoding resistance to aminoglycosides (aacA-aphD, aphA, and aadK), as well as macrolides (ermB), tetracyclines (tetS), and streptothricin (sat), all located in the same gene section.
Aarestrup (2000) reported that resistance to streptothricin antibiotics has been described in Gram-negative bacteria as a result of using nourseothricin as an antimicrobial feed promoter in industrial animal farms in Germany.