Standard Lemma guide

piperacillin

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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  • General-American: /pɪˌpɛɹ.ɪˈsɪl.ɪn/
  • rhymes with -ɪlɪn

1

noun

Meaning 1

A particular ureidopenicillin antibiotic.

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

a synthetic type of penicillin antibiotic (trade name Pipracil) used for moderate to severe infections

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Pipracil

Antonyms: none provided

Broader terms: penicillin

History

Etymology

From pipera(zine) + -cillin (“6-aminopenicillanic acid derivative”).