
n., pl., -lo·ri (-lôr'ī', -lōr'ī').
The passage at the lower end of the stomach that opens into the duodenum.
[Late Latin pylōrus, from Greek pulōros : pulē, gate + ouros, guard.]
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American Heritage Dictionary:
py·lo·rus |

[Late Latin pylōrus, from Greek pulōros : pulē, gate + ouros, guard.]
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American Heritage Stedman's Medical Dictionary:
py·lo·rus |
Saunders Veterinary Dictionary:
pylorus |
The distal aperture of the stomach or abomasum, opening into the duodenum. The term pylorus is variously used to mean the pyloric part of the stomach, and the pyloric antrum, canal, opening or sphincter. A ring of muscles, the pyloric sphincter, serves as a ‘gate’, closing the opening from the stomach to the intestine. It opens periodically, allowing the contents of the stomach to move into the duodenum. See also pyloric.
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![]() | American Heritage Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved. Read more |
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![]() | American Heritage Stedman's Medical Dictionary. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Read more |
![]() | Saunders Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved. Read more | |
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