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Definitions

antibiotic

[an-ti-bahy-ot-ik, -bee-, an-tee-, -tahy-] / ˌæn tɪ baɪˈɒt ɪk, -bi-, ˌæn ti-, -taɪ- /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

On average, the test can determine which antibiotic will be effective in about 5.85 hours.

From Science Daily • Mar. 31, 2026

If bacteria stop growing, the antibiotic in that tube is effective.

From Science Daily • Mar. 31, 2026

Prof Robin May, chief scientific officer at the UKHSA, says its analysis offers "strong reassurance that our existing vaccinations and antibiotic treatment offer will be effective against this strain".

From BBC • Mar. 24, 2026

"So I hope people are reassured that we are managing it, antibiotic provision is there, we're standing up vaccination and general risk is low even if the disease itself is very serious."

From BBC • Mar. 18, 2026

In a patient who gets only one antibiotic or inadequate doses of several, or who doesn’t take his medicine as instructed, the drug-susceptible bacilli may die off but the drug-resistant mutants will flourish.

From "Mountains Beyond Mountains" by Tracy Kidder and Michael French