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1. (n.) pylorus
the opening between the stomach and the start of the intestine in most vertebrates.
Etymology: (1605–15; < LL < Gk pylōrós lit., gatekeeper)
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| Definition of 'pylorus' |
Princeton's WordNet |
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1. (noun) pylorus
a small circular opening between the stomach and the duodenum
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| Definition of 'pylorus' |
Webster Dictionary |
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1. (noun) pylorus
the opening from the stomach into the intestine
2. (noun) pylorus
a posterior division of the stomach in some invertebrates
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| Definition of 'pylorus' |
U.S. National Library of Medicine |
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1. pylorus
The region of the STOMACH at the junction with the DUODENUM. It is marked by the thickening of circular muscle layers forming the pyloric sphincter to control the opening and closure of the lumen.
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Definitions of pylorus 
