Standard Lemma guide

bradykinin

noun · 1 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: /ˌbɹæd.ɪˈkʌɪ.nɪn/
  • General-American: /ˌbɹeɪ.dəˈkaɪ.nɪn/
  • CMU ARPABET: B R AH0 D IH1 K IH0 N IH0 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A compound released in the blood in some circumstances which causes contraction of smooth muscle and dilation of blood vessels. It is a peptide with nine amino-acid residues.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: biochemistry, biology, chemistry, microbiology, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From Ancient Greek βραδύς (bradús, “slow, brady-”) + Ancient Greek κίνησις (kínēsis, “motion”) + -in.