Look up: Fainting

1. 
   Fainting
   Fainting (‘Syncope`) is a transient loss of consciousness with a resultant loss of postural tone caused by a temporary interruption of blood flow to the brain
   Found on http://www.dwp.gov.uk/medical/med_condit
   
   
2. 
   Fainting
   Faint'ing noun Syncope, or loss of consciousness owing to a sudden arrest of the blood supply to the brain, the face becoming pallid, the respiration feeble, and the heat's beat weak. Fainting fit , a fainting or swoon; syncope. [ Colloq.]
   Found on http://www.encyclo.co.uk/webster/F/3
   
   
3. 
   fainting
   <neurology, physiology> A form of syncope (fainting) that occurs as a part of a normal physiologic response to stress (often emotional stress). The individual becomes lightheaded, nauseated, flushed, feels warm and then may lose consciousness for several seconds. ... (27 Sep 1997) ...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
4. 
   Fainting
   `Fainting`, also called `syncope` , is a sudden, and generally momentary, loss of consciousness, or blacking out caused by the Central Ischaemic Response, because of a lack of sufficient blood and oxygen in the brain. The first symptoms a person feels before fainting are dizziness; a dimming of vision, or brownout; tinnitus; and feeling hot. Moments later, the person's vision turns black, and he or she drops to the floor (or slumps if seated in a...
   Found on http://en.wikipedia.org/wiki/Fainting
   
   
5. 
   Fainting
   • (p. pr. & vb. n.) of Faint • (n.) Syncope, or loss of consciousness owing to a sudden arrest of the blood supply to the brain, the face becoming pallid, the respiration feeble, and the heat`s beat weak.
   Found on http://thinkexist.com/dictionary/meaning
   
   
6. 
   fainting
   in physiology, loss of consciousness owing to a temporary decrease in the blood supply to the brain. See syncope.
   Found on http://www.britannica.com/eb/a-z/f/3
   
   
7. 
   fainting
   fainting or syncope (sing'kupē) , temporary loss of consciousness caused by an insufficient supply of oxygen to the brain. It can be concurrent with any serious disease or condition, such as heart failure, hypertension (high blood pressure), arrhythmia, hemorrhage, injury to the brain or o...
   Found on http://www.infoplease.com/ce6/sci/A08181