Definition of tetracycline in English:


Syllabification: tet·ra·cy·cline
Pronunciation: /ˌtetrəˈsīˌklēn, -klin


Any of a large group of antibiotics with a molecular structure containing four rings.
  • These antibiotics are often obtained from bacteria of the genus Streptomyces
More 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:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day flippant
Pronunciation: ˈflipənt
not showing a serious or respectful attitude