|1.||any of a group of polypeptides in the blood that cause dilation of the blood vessels and make smooth muscles contract|
|2.||another name for cytokinin|
|[C20: from Greek kin(ēma) motion + |
kinin ki·nin (kī'nĭn)
Any of various polypeptides, such as bradykinin, that act locally to induce vasodilation and contraction of smooth muscle.