1. A muscle that contracts or shuts an orifice or aperture round which it is placed.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• sphinkter,
• sphicter,
• sphinctor,
• sphyncter,
• sphincterof,
• sphinster,
• sphinter,
• spincter,
• aphincter,
• zphincter,
• xphincter,
• dphincter,
• ephincter,
• wphincter,
• sohincter,
• slhincter,
• s-hincter,
• s0hincter,
• sphincer,
• siphincled

• sphingidae,
• spaying,
• sphinx,
• sphingine,
• spinnaker,
• spinster,
• spencer,
• Spence,
• spinsterhood.

The adjective form of the word "sphincter" is "sphincteric".

The plural of the "sphincter" can be the "sphincters".

The singular of the "sphincter" can be the "sphincter".