a peptide in blood plasma that dilates blood vessels and causes contraction of smooth muscles. Formula: C50H73N15O11
Word origin
C20: from brady- + Greek kin(ēsis) motion + -in
bradykinin in American English
(ˌbrædɪˈkaɪnɪn; ˌbrædɪˈkɪnɪn)
noun
a kinin, C50H73N15O11, released from blood plasma by some snake venoms and certain other enzymes, which slows intestinal contractions, lowers blood pressure, etc.