1. sphincter

noun. a ring of muscle that contracts to close an opening.


  • pyloric valve
  • musculus sphincter pylori
  • musculus sphincter urethrae
  • sphincter muscle
  • bladder sphincter
  • physiological sphincter
  • pyloric sphincter
  • musculus sphincter ductus choledochi
  • musculus sphincter ductus pancreatici
  • urethral sphincter
  • musculus
  • anatomical sphincter
  • anal sphincter
  • pupillary sphincter
  • muscle
  • musculus sphincter vesicae
  • sphincter ani
  • musculus sphincter pupillae


  • sphincter (Latin)
  • σφιγκτήρ (Ancient Greek (to 1453))

Featured Games

Sentences with urethral-sphincter

1. Noun Phrase
Inhale and feel your urethral sphincter meet the ball as you squeeze your muscles.

2. Noun Phrase
The function of phenylpropanolamine in urinary incontinence treatment is to give a boost to the tone of the urethral sphincter and as a result curb the dripping of urine that is so characteristic of the condition.

3. Noun Phrase
Because those hormones are essential for muscle tone of the urethral sphincter, an imbalance can cause loss of bladder control.

4. Noun Phrase
It works in canine urinary incontinence by aiding in keeping the urethral sphincter tight, making it more difficult for the urine to leak out.