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Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
tetracycline is a noun meaning "an antibiotic (trade name Achromycin) derived from microorganisms of the genus Streptomyces and used broadly to treat infections". It carries one recorded sense.
an antibiotic (trade name Achromycin) derived from microorganisms of the genus Streptomyces and used broadly to treat infections
trade name
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for tetracycline come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.