kinin

noun Biochemistry.

1. cytokinin.
2. any of a group of hormones, formed in body tissues, that cause dilation of blood vessels and influence capillary permeability.

1. a combining form used in the names of hormones, especially peptide hormones: bradykinin; cytokinin.

noun

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

n.

1. Any of various polypeptides, such as bradykinin, that act locally to induce vasodilation and contraction of smooth muscle.