Definitions for antibioticˌæn tɪ baɪˈɒt ɪk, -bi-, ˌæn ti-, -taɪ-

This page provides all possible meanings and translations of the word antibiotic

Random House Webster's College Dictionary

an•ti•bi•ot•icˌæn tɪ baɪˈɒt ɪk, -bi-, ˌæn ti-, -taɪ-(n.)

  1. any of a large group of chemical substances, as penicillin and streptomycin, that are produced by various microorganisms and fungi, have the capacity in dilute solutions to inhibit the growth of or to destroy bacteria and other microorganisms, and are used in the treatment of infectious diseases.

    Category: Biochemistry

  2. (adj.)of or involving antibiotics.

    Category: Biochemistry

Origin of antibiotic:



Princeton's WordNet

  1. antibiotic, antibiotic drug(adj)

    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"

  2. antibiotic(adj)

    of or relating to antibiotic drugs

Kernerman English Learner's Dictionary

  1. antibiotic(noun)ˌæn tɪ baɪˈɒt ɪk, -bi-, ˌæn ti-, -taɪ-

    a medication that cures infections

    powerful antibiotics


  1. antibiotic(Noun)

    Any substance that can destroy or inhibit the growth of bacteria and similar microorganisms.

  2. antibiotic(Adjective)

    Of or relating to antibiotics.

  3. Origin: From antibiotique, coined in 1889 by P. Vuillemin from anti- and biotique, from βιωτικός (from βίος, from gʷeih₃w-), perhaps influenced by ἀντίϐιος


  1. Antibiotics

    An antibiotic is an agent that kills microorganism. The term antibiotic was first used in 1942 by Selman Waksman and his collaborators in journal articles to describe any substance produced by a microorganism that is antagonistic to the growth of other microorganisms in high dilution. The first antibiotic discovered was called penicillin by Alexander Fleming in 1928. This definition excluded substances that kill bacteria but that are not produced by microorganisms. It also excluded synthetic antibacterial compounds such as the sulfonamides. Many antibacterial compounds are relatively small molecules with a molecular weight of less than 2000 atomic mass units. With advances in medicinal chemistry, most modern antibacterials are semisynthetic modifications of various natural compounds. These include, for example, the beta-lactam antibiotics, which include the penicillins, the cephalosporins, and the carbapenems. Compounds that are still isolated from living organisms are the aminoglycosides, whereas other antibacterials—for example, the sulfonamides, the quinolones, and the oxazolidinones—are produced solely by chemical synthesis.

Translations for antibiotic

Kernerman English Multilingual Dictionary


a medicine which is used to kill the bacteria that cause disease.

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