neomycin

noun

neo·my·cin | \ ˌnē-ə-ˈmī-sᵊn

Definition of neomycin

: a broad-spectrum highly toxic antibiotic or mixture of antibiotics produced by a streptomyces (Streptomyces fradiae) and used medically especially to treat local infections

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The vaccine is not recommended for people who allergic to gelatin, the antibiotic neomycin, or any other vaccine components. — Health.com, "What Is Shingles?," 1 May 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'neomycin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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The first known use of neomycin was in 1949

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neomycin

noun

neo·my·cin | \ ˌnē-ə-ˈmīs-ᵊn

Medical Definition of neomycin

: a broad-spectrum highly toxic mixture of aminoglycoside antibiotics produced by a bacterium of the genus Streptomyces (S. fradiae) specifically : a commercial preparation that is composed chiefly of two stereoisomers of neomycin administered in the form of their sulfate C₂₃H₄₆N₆O₁₃·2¹/₂H₂SO₄ and that is used either alone or in combination with one or more other drugs especially to treat infections (as impetigo or conjunctivitis) topically, to irrigate the bladder, and to produce intestinal antisepsis prior to certain surgeries