Look up: sphincter

1. 
   sphincter
   [n] - a ring of muscle that contracts to close an opening
   Found on http://www.webdictionary.co.uk/definitio
   
   
2. 
   Sphincter
   A valve found in, or at the end of, some tubes of the body. They contain a ring of muscle that can open or close the valve, and therefore control the flow of materials along the tube.
   Found on http://www.spinalnet.co.uk/EEndCom/GBCON
   
   
3. 
   Sphincter
   a ring of muscle fibres located around a naturally occurring passage or opening in the body that opens and closes to regulate passage of substances
   Found on http://www.medichecks.com/glossary.cfm?l
   
   
4. 
   Sphincter
   A ring of muscle at the outlet of an organ e.g. bowel or bladder whose contraction prevents incontinence
   Found on http://www.dwp.gov.uk/medical/med_condit
   
   
5. 
   sphincter
   A muscular valve.
   Found on http://digestivedisorders.org.uk/Default
   
   
6. 
   Sphincter
   Any muscle closing an orifice.
   Found on http://www.gadsbywicks.co.uk/docs/GLOSSA
   
   
7. 
   sphincter
   any annular muscle closing an orifice Category: Medicine
   Found on http://www.mijnwoordenboek.nl/definition
   
   
8. 
   Sphincter
   Sphinc'ter noun [ New Latin , from ......... to bind tight.] (Anat.) A muscle which surrounds, and by its contraction tends to close, a natural opening; as, the sphincter of the bladder.
   Found on http://www.encyclo.co.uk/webster/S/162
   
   
9. 
   Sphincter
   Sphinc'ter adjective (Anat.) Of, pertaining to, or designating, a sphincter; as, a sphincter muscle.
   Found on http://www.encyclo.co.uk/webster/S/162
   
   
10. 
    sphincter
    <anatomy> A ringlike band of muscle fibres that constricts a passage or closes a natural orifice, also called musculus sphincter. ... Origin: L., Gr. Sphinkter = that which binds tight ... (18 Nov 1997) ...
    Found on http://www.mondofacto.com/facts/dictiona
    
    
11. 
    sphincter
    anatomical sphincter noun a ring of muscle that contracts to close an opening
    Found on http://wordnet.princeton.edu/perl/webwn?
    
    
12. 
    Sphincter
    A `sphincter` is a structure, usually a circular muscle, that normally maintains constriction of a natural body passage or orifice and which relaxes as required by normal physiological functioning. There are over 40 different sphincters in the human body; some of these sphincters are microscopic in size. Many sphincters are used every day in the normal course of digestion. For example, the epiglottis is used to seal off the windpipe when swallow...
    Found on http://en.wikipedia.org/wiki/Sphincter
    
    
13. 
    sphincter
    (sfingk´tәr) a circular muscle that constricts a passage or closes a natural orifice. When relaxed, a sphincter allows materials to pass through the opening. When contracted, it closes the opening. Four main sphincter muscles along the alimentary canal aid in digestion: the cardiac sphincter, the pyloric sph...
    Found on http://www.mercksource.com/pp/us/cns/cns
    
    
14. 
    Sphincter
    • (n.) A muscle which surrounds, and by its contraction tends to close, a natural opening; as, the sphincter of the bladder. • (a.) Of, pertaining to, or designating, a sphincter; as, a sphincter muscle.
    Found on http://thinkexist.com/dictionary/meaning
    
    
15. 
    sphincter
    (L.; Gr. sphinktr that which binds tight) a ringlike band of muscle fibres that constricts a passage or closes a natural orifice; called also musculus sphincter (NA).
    Found on http://users.ugent.be/~rvdstich/eugloss/
    
    
16. 
    sphincter
    sphincter, sphincteral 1. A contractile muscular ring by which an orifice of the body (in man or animals) is normally kept closed. 2. A ringlike band of muscle fibers that constricts a passage or closes a natural orifice.
    Found on http://www.wordinfo.info/words/index/inf
    
    
17. 
    sphincter
    A muscle that encircles a duct, tube, or orifice in such a way that its contraction constricts the lumen or orifice. Syn: sphincter muscle TA, musculus sphincter TA [G. sphinktr, a band or lace]
    Found on
    
    
18. 
    sphincter
    A circle of muscle surrounding a body tube, usually near the outlet of the tube. A sphincter may be a voluntary or involuntary muscle. The pyloric sphincter regulates the flow of food from the stomach into the small intestine.
    Found on http://www.daviddarling.info/encyclopedi