Look up: kinin

1. 
   kinin
   One of a number of widely differing substances having pronounced and dramatic physiological effects. Some (e.g., kallidin and bradykinin) are polypeptides, formed in blood by proteolysis secondary to some pathological process, that stimulate visceral smooth muscle but relax vascular smooth muscle, thus producing vasodilation; others (e.g., kinetin) ...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
2. 
   Kinin
   A `kinin` is any of various structurally related polypeptides, such as bradykinin and kallikrein. They are members of the autacoid family. They act locally to induce vasodilation and contraction of smooth muscle. It is a component of the kinin-kallikrein system. Their precursors are kininogen. In botany, it refers to plant hormones which delay aging.
   Found on http://en.wikipedia.org/wiki/Kinin
   
   
3. 
   kinin
   (ki´nin) the generic term for any of the polypeptides related in amino acid sequence and physiological activity to bradykinin and kallidin, formed by cleavage of kininogens. Kinins are plasma proteins that increase the permeability of blood vessels, and are active in inflammation by interacting with prostaglandins to cause pa...
   Found on http://www.mercksource.com/pp/us/cns/cns
   
   
4. 
   kinin
   (from the article `hormone`) Blood contains kinins, which are polypeptides that originate in the blood and perhaps elsewhere; bradykinin, for example, causes contraction of most ... The plasma contains four interrelated systems of proteins—complement, the kinins, coagulation factors, and the fibrinolytic system—that generate ....
   Found on http://www.britannica.com/eb/a-z/k/34
   
   
5. 
   kinin
   One of a number of widely differing substances having pronounced and dramatic physiologic effects. Some (e.g., kallidin and bradykinin) are polypeptides, formed in blood by proteolysis secondary to some pathological process, that stimulate visceral smooth muscle but relax vascular smooth muscle, thus producing vasodilation; others (e.g., kinetin) a...
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6. 
   kinin
   Any of a group of plant hormones which affect growth and are used to preserve cut flowers; also, in animals, kinins are peptides released by enzyme action which contraction of smooth muscle and elevate blood pressure, thus playing an important role in inflammation and shock.
   Found on http://www.daviddarling.info/encyclopedi