Standard Lemma guide

esmolol

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: /ˈɛz.məˌlɔl/

1

noun

Meaning 1

A cardioselective beta blocker used in parenteral forms in the treatment of arrhythmias and severe hypertension.

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

intravenous beta blocker (trade name Brevibloc) that acts for only a short time; used primarily for cardiac arrhythmias

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Brevibloc

Antonyms: none provided

Broader terms: beta blocker, beta-blocking agent, beta-adrenergic blocker, beta-adrenergic blocking agent

History

Etymology

From es(ter) + m(ethyl) + -olol (“β-adrenoceptor antagonist”).