streptomycin

noun

strep·to·my·cin | \ ˌstrep-tə-ˈmī-sᵊn

Definition of streptomycin

: an antibiotic organic base C₂₁H₃₉N₇O₁₂ that is produced by a soil actinomycete (Streptomyces griseus), is active against many bacteria, and is used especially in the treatment of infections (such as tuberculosis) by gram-negative bacteria

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For example, streptomycin, which has been used to treat tuberculosis and plague, is produced by the bacterium Streptomyces griseus. — Sarah Kaplan, ajc, "Scientists discover potentially powerful new antibiotic in dirt," 13 Feb. 2018 The 1952 medicine and physiology prize went to Selman Waksman for the discovery of the antibiotic streptomycin, and ignored Waksman’s graduate student Albert Schatz, who actually found the chemical. — Ed Yong, The Atlantic, "The Absurdity of the Nobel Prizes in Science," 3 Oct. 2017 Waksman was awarded a Nobel Prize for Medicine and Physiology in 1952 for his work in discovering Streptomyces grieses and creating streptomycin. — Melanie Burney, Philly.com, "A New Jersey thing: An official state germ?," 14 June 2017 Today, streptomycin has been replaced with more effective antibiotics. — Melanie Burney, Philly.com, "A New Jersey thing: An official state germ?," 14 June 2017 And mark the calendar to spray the plants with agricultural streptomycin during peak bloom season next time around. — Neil Sperry, star-telegram.com, "Common problems encountered in mid-spring gardening," 6 May 2017 Of the Enterococci, at least 90 percent of those found in each species were resistant to tetracycline; from 50 percent to 70 percent were resistant to erythromycin; and from 10 percent to 40 percent were resistant to ciprofloxacin and streptomycin — — Maryn Mckenna, WIRED, "Farm antibiotics, human illness and what connects them. (It has legs.)," 28 Jan. 2011

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'streptomycin.' 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 streptomycin was in 1944

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streptomycin

noun

strep·to·my·cin | \ -ˈmīs-ᵊn

Medical Definition of streptomycin

: an antibiotic organic base C₂₁H₃₉N₇O₁₂ that is produced by a soil actinomycete of the genus Streptomyces (S. griseus), is active against bacteria, and is used especially in the treatment of infections (as tuberculosis) by gram-negative bacteria