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.encyclo.co.uk/local/20560
   
   
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://www.encyclo.co.uk/local/20896
   
   
6. Sphincter
   Any muscle closing an orifice.
   Found on http://www.gadsbywicks.co.uk/uploaded/38
   
   
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://wordnetweb.princeton.edu/perl/web
    
    
12. 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.encyclo.co.uk/local/21001
    
    
13. 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
    
    
14. 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/
    
    
15. 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
    
    
16. Sphincter
    A ring-shaped muscle that allows an opening to close tightly, such as the sphincter muscle in the lower end of a cow's teat.
    Found on http://www.epa.gov/agriculture/ag101/dai
    
    
17. sphincter
    Type: Term Pronunciation: sfingk′tĕr Definitions: 1. A muscle that encircles a duct, tube, or orifice in such a way that its contraction constricts the lumen or orifice. Synonyms: musculus sphincter, sphincter muscle
    Found on http://www.medilexicon.com/medicaldictio
    
    
18. sphincter
    Ring of muscle, such as is found at various points in the alimentary canal, that contracts and relaxes to open and close the canal and control the movement of food. The pyloric sphincter, at the base of the stomach, controls the release of the gastric contents into the duodenum. After release the sp...
    Found on http://www.talktalk.co.uk/reference/ency
    
    
19. SPHINCTER
    Circular band or ring of muscle that serves to open or close a tube or orifice; analogous to a valve.
    Found on http://www.thehorse.com/Glossary.xhtml?L
    
    
20. sphincter
    Greek sphinkter = a tight binder; hence, a circular muscle which closes an orifice; adjective - sphincteric.
    Found on http://www.anatomy.usyd.edu.au/glossary/
    
    
21. sphincter
    (sfingk;ter) A circular muscle that functions to constrict a body opening or the lumen of a tubular structure.
    Found on http://www.mhhe.com/biosci/abio/glossary
    
    
22. sphincter
    (sfingk;ter) A circular muscle that functions to constrict a body opening or the lumen of a tubular structure.
    Found on http://www.mhhe.com/biosci/abio/glossary
    
    
23. sphincter
    A ring-shaped muscle that relaxes or tightens to open or close a passage or opening in the body. Examples are the anal sphincter (around the opening of the anus) and the pyloric sphincter (at the lower opening of the stomach).
    Found on http://www.cancer.gov/dictionary?expand=
    
    
24. Sphincter
    A `sphincter` is a structure, or 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 50 different sphincters in the human body; some of these sphincters are microscopic in size,...
    Found on http://en.wikipedia.org/wiki/Sphincter