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antibiotic

1 of 2

noun

an·​ti·​bi·​ot·​ic
ˌan-tē-bī-ˈä-tik,
-ˌtī- How to pronounce antibiotic (audio) -bē-ˈä- How to pronounce antibiotic (audio)
: a substance able to inhibit or kill microorganisms
specifically : an antibacterial substance (such as penicillin, cephalosporin, and ciprofloxacin) that is used to treat or prevent infections by killing or inhibiting the growth of bacteria in or on the body, that is administered orally, topically, or by injection, and that is isolated from cultures of certain microorganisms (such as fungi) or is of semi-synthetic or synthetic origin
Symptoms of campylobacteriosis include muscle aches, fever, cramps and diarrhea leading to gastrointestinal illness, which can be treated with antibiotics. Chicago Daily Herald
Another way to produce new variants of established antibiotics is to use genetic engineering to alter the biochemical pathways of the microbes that produce them. New Scientist
Experts agree that by spiking animal feed with antibiotics, conventional farmers are speeding the emergence of drug-resistant bacteria. Geoffrey Cowley

Note: While antibiotics are effective mainly against bacteria, they are sometimes used to treat protozoal infections. Some consider antibiotics to include only those derived fully or partly from microorganisms and exclude synthetic forms from this class of drugs.

antibiotic

2 of 2

adjective

1
: tending to prevent, inhibit, or destroy life
2
: of or relating to antibiotics or to antibiosis
antibiotic drugs
antibiotically
ˌan-tē-bī-ˈä-ti-k(ə-)lē
ˌan-ˌtī- How to pronounce antibiotic (audio)
-bē-ˈä-
adverb

Example Sentences

Recent Examples on the Web
Noun
Oftentimes, the illness can be cured using an antibiotic to kill off the infection, Farr said. Staff And Wire Reports, USA TODAY, 19 Aug. 2022 Or penicillin, the infection-fighting antibiotic derived from mold in 1928. Robert Pearl, Forbes, 13 June 2022 With bacterial infections, prompt treatment with the right antibiotic is critical. Julie Stewart, Men's Health, 29 June 2022 Also, between March 2020 and October 2020, nearly 80% of patients hospitalized with Covid-19 received an antibiotic. Deidre Mcphillips, CNN, 12 July 2022 Fortunately, doctors were able to find the infection and treat it with an antibiotic. Ben Thomas | Bthomas@al.com, al, 10 June 2022 Typically, the best way to get rid of a UTI and put an end to the uncomfortable burning and urgency to pee is with an antibiotic that kills the particular strain of bacteria causing trouble. Kaitlyn Pirie, Good Housekeeping, 13 May 2022 They are often recommended after an antibiotic to replenish the good bacteria that can be killed alongside the bad with medication. Madeline Holcombe, CNN, 23 June 2022 After injecting the virus into the eye, the pluripotent genes were then switched on by feeding the mouse an antibiotic. Sandee Lamotte, CNN, 2 June 2022
Adjective
Clean the wound with soap and water and treat with antibiotic ointment if available. Miles Blumhardt, USA TODAY, 17 July 2022 Currently, there’s no gonococcal vaccine, not nearly enough new antibiotics being developed, and a general lack of urgency among politicians, policy makers, and businesses in addressing the increasing problem of antibiotic-resistant bacteria. Bruce Y. Lee, Forbes, 21 June 2022 Stephanie Kessler, Dennard’s attorney, claimed Dennard contracted an antibiotic-resistant infection due to mismanagement of her medical care by the federal Bureau of Prisons, the documents show. Fox19 & Enquirer Staff, The Enquirer, 25 Apr. 2022 Some cases can improve without treatment in a few weeks while others are life-threatening, requiring emergency antibiotic treatment. Naledi Ushe, USA TODAY, 14 Aug. 2022 For viral infections though, aside from antibiotic treatment, supportive care tends to be the best treatment that can be offered to help deal with discomfort. Victoria Uwumarogie, Essence, 9 Aug. 2022 In many low- to middle-income countries, antibiotic use is limited to what’s available, not necessarily what’s best. Scott Lafee, San Diego Union-Tribune, 2 Aug. 2022 Within three months, the Michigan team helped reduce the hospitals’ Covid antibiotic use, cutting short misuse that could lead to the emergence of superbugs. Wired, 15 July 2022 But there are worries the regimen could trigger antibiotic resistance, and scientists disagree about whether doxyPEP should be introduced now. Julie Washington, cleveland, 9 Aug. 2022 See More

Word History

Etymology

Noun

derivative of antibiotic entry 2

Note: Noun use of the adjective antibiotic probably began in the early 1940's, preceded by the frequent collocation antibiotic substance, but was not common before Selman waksman's paper "What Is an Antibiotic or an Antibiotic Substance?" (Mycologia, vol. 39, no. 5 [September-October, 1947]). Waksman has been credited with coining antibiotic, though he does not claim to have done so, and in fact gives an account of the earlier history of the word in this article.

Adjective

borrowed from French antibiotique, derivative of antibiose antibiosis (after symbiose symbiosis : symbiotique symbiotic)

Note: See note at antibiosis.

First Known Use

Noun

1943, in the meaning defined above

Adjective

1891, in the meaning defined at sense 1

Time Traveler
The first known use of antibiotic was in 1891

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