dilator

A noun referring to a muscle, nerve, drug, or surgical instrument that causes dilation or widening of a body part, opening, or organ.

• 🌐اسم يدل على عضلة أو عصب أو دواء أو أداة جراحية تسبب توسيعًا أو زيادة في جزء من الجسم أو فتحة أو عضو.

1. Muscle or nerve C1 formal medical

   A muscle or nerve that causes a body part to widen or expand.

   • The iris dilator muscle controls the size of the pupil.
   • The dilator nerve signals the blood vessels to expand.
   • Damage to the dilator can affect how the eye responds to light.

   🌐موسّع

2. Drug C1 formal medical

   A pharmaceutical substance that causes dilation of blood vessels or other passages.

   • The doctor prescribed a dilator to improve blood flow.
   • This dilator is used to treat certain heart conditions.
   • The patient responded well to the dilator medication.

   🌐موسّع الأوعية

3. Surgical instrument C1 formal medical

   A tool used by surgeons to widen an opening or cavity in the body.

   • The surgeon used a dilator to gently expand the artery.
   • A cervical dilator is often used during certain procedures.
   • The instrument set includes several sizes of dilators.

   🌐موسّع