endothelin

== English == === Etymology === From endothelium +‎ -in. === Pronunciation === (General American) IPA(key): /ˌɛn.doʊˈθiː.lɪn/ === Noun === endothelin (uncountable) (biochemistry) Any of several polypeptides consisting of 21 amino acid residues that are produced in various cells and tissues, that play a role in regulating vasomotor activity, cell proliferation, and the production of hormones, and that have been implicated in the development of vascular disease. ==== Derived terms ==== ==== Related terms ==== ==== Translations ==== === References === “endothelin”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.