Definition of tetracycline in English:

tetracycline

noun

Medicine
  • Any of a large group of antibiotics with a molecular structure containing four rings.

    • ‘He was treated with a six-month course of a tetracycline and made a slow and steady recovery.’
    • ‘It is well established that far less expensive antibiotics, including the penicillins and tetracyclines, are highly effective against Anthrax.’
    • ‘Some antibiotics, such as tetracycline, are not fully effective when taken with milk or dairy products.’
    • ‘This strain was resistant to methicillin, cephalothin, gentamicin, erythromycin, chloramphenicol and tetracycline.’
    • ‘Moderate acne is often successfully treated with a low-dose oral antibiotic, such as tetracycline or erythromycin.’

Origin

1950s: from tetra- + cyclic + -ine.

Pronunciation:

tetracycline

/ˌtɛtrəˈsʌɪkliːn/