Renin

//ˈɹi.nɪn// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A circulating enzyme released by mammalian kidneys that converts angiotensinogen to angiotensin I. Due to its activity which ultimately leads to the formation of angiotensin II and aldosterone, this hormone plays a role in maintaining blood pressure. countable, uncountable
  2. 2
    a proteolytic enzyme secreted by the kidneys; catalyzes the formation of angiotensin and thus affects blood pressure wordnet

Etymology

From reno- + -in.

Related phrases

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.