1. a medical instrument used to enlarge or stretch an opening or cavity in the body
Usage: medical
2. a muscle that dilates or widens a body part or opening
Usage: anatomy

Examples

• The surgeon used a dilator to widen the patient’s esophagus.
• The doctor inserted a nasal dilator to improve breathing.
• A cervical dilator was needed for the medical procedure.
• The pupil dilator muscle controls the size of the eye’s opening.
• The dilator helped expand the blocked artery.
• Medical dilators come in various sizes for different procedures.