Standard Lemma guide

chlortetracycline

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • Received-Pronunciation: /ˌklɔː.tɛ.tɹəˈsʌɪ.kliːn/
  • General-American: /ˌklɔɹˌtɛ.tɹəˈsaɪˌklin/

1

noun

Meaning 1

A yellow crystalline broad-spectrum antibiotic C22H23ClN2O8 (trademark Aureomycin) of the tetracycline group that is produced by a soil actinomycete (Kitasatospora aureofaciens), active against many bacterial and fungal infections, and is sometimes used in animal feeds to stimulate growth.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: medicine, pharmacology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a yellow crystalline antibiotic (trade name Aureomycin) used to treat certain bacterial and rickettsial diseases

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Aureomycin

Antonyms: none provided

Broader terms: antibiotic, antibiotic drug

History

Etymology

From chlor- + tetracycline.