- cytokinin.
- any of a group of hormones, formed in body tissues, that cause dilation of blood vessels and influence capillary permeability.
- a combining form used in the names of hormones, especially peptide hormones: bradykinin; cytokinin.
- any of a group of polypeptides in the blood that cause dilation of the blood vessels and make smooth muscles contract
- another name for cytokinin
