1570s, from Middle French sphincter, from Late Latin sphincter "contractile muscle," from Greek sphinkter "band, lace, anything that binds tight," from sphingein "to squeeze, bind," of unknown origin. First used in anatomical sense by Galen. There are several in the body; the one usually meant is the sphincter ani.
权威例句
1. Carlo's body , sphincter released by approaching death, had voided itself.
突然之间,车内臭气熏天,卡罗在接近死亡时括约肌松弛了.
2. Luca's sphincter, no longer under control , opened , the waste of his body spilled out.
突然一下,地板上湿漉漉 、 滑溜溜的, 路加屎尿流出来了.
3. A ring of muscle, the cardiac sphincter, surrounds the esophagus at this point.
此处有一肌肉环即贲门括约肌围绕着食道.
4. Partial internal anal sphincter resection does not compromise the longterm anal function.
切除部分内括约肌对肛门的远期功能无明显影响.
5. Tongue Twister J _ K _ L Just think, that sphinx has a sphincter that stinks!