pylorus

noun

py·​lo·​rus pī-ˈlȯr-əs 

pə-

plural pylori pī-ˈlȯr-ˌī 

-(ˌ)ē,

pə-

: the muscular opening from the vertebrate stomach into the intestine

Examples of pylorus in a Sentence

Recent Examples on the Web

The closer a pill lands to the antrum, the last part of the stomach before the intestine, the faster the pill begins to dissolve and find its way through the pylorus into the duodenum, the first part of the small intestine. —Scott Lafee, San Diego Union-Tribune, 20 Sep. 2022

This is key, because once popped back open, those arms span wider than two centimeters—the diameter of the human pylorus, the gateway to the intestines. —Wired, 4 Dec. 2019

Word History

Etymology

Late Latin, from Greek pylōros, literally, gatekeeper, from pylē

First Known Use

1565, in the meaning defined above

Kids Definition

pylorus

noun

py·​lo·​rus pī-ˈlōr-əs 

-ˈlȯr-

plural pylori -ˈlō(ə)r-ˌī 

-ˌē

: the opening in a vertebrate animal from the stomach into the intestine

pyloric

pī-ˈlōr-ik

pə-

-ˈlȯr-

adjective

Medical Definition

pylorus

noun

py·​lo·​rus pī-ˈlōr-əs, pə-ˈlȯr- 

plural pylori -ˈlō(ə)r-ˌī, -(ˌ)ē 

: the opening from the vertebrate stomach into the intestine see pyloric sphincter