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tetracycline Syllabification: tet·ra·cy·cline
Pronunciation: /ˌtetrəˈsīklēn/

Definition of tetracycline in English:


Any of a large group of antibiotics with a molecular structure containing four rings.
Example sentences
  • 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.
  • He was treated with a six-month course of a tetracycline and made a slow and steady recovery.


1950s: from tetra- + cyclic + -ine4.

Definition of tetracycline in:
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