Tetracycline

//ˌtɛ.tɹəˈsaɪ.kliːn// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A yellow crystalline broad-spectrum antibiotic C₂₂H₂₄N₂O₈ produced by streptomyces or synthetically. uncountable
  2. 2
    an antibiotic (trade name Achromycin) derived from microorganisms of the genus Streptomyces and used broadly to treat infections wordnet
  3. 3
    Any of a large group of antibiotics with the same general structure derived from tetracene with many hydroxyl and other groups. countable

Etymology

From tetracyclic + -ine.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.