Standard Lemma guide

streptomycin

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: /ˌstɹɛp.tə(ʊ)ˈmʌɪ.sɪn/
  • General-American: /ˌstɹɛp.təˈmaɪ.sn̩/

1

noun

Meaning 1

An aminoglycoside and bactericidal antibiotic C21H39N7O12 that is produced by a soil actinomycete (Streptomyces griseus), is active against many bacteria, and is administered via intramuscular injection especially in the treatment of infections by gram-negative bacteria. It was the first drug to be successful against tuberculosis but is now chiefly used with other drugs because of its toxic side effects.

Definition source: English Wiktionary via Wiktextract

Usage: 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

an antibiotic produced by the actinomycete Streptomyces griseus and used to treat tuberculosis

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: antibiotic, antibiotic drug

History

Etymology

From translingual Streptomyces + -in. By surface analysis, strepto- + -mycin.

Across languages

Translations

2 source translations are retained for this English entry.

  • Interlingua: streptomycina — Translations
  • Spanish: estreptomicina — Translations