dilatators

/ˈdaɪleɪˌteɪtərz/
noun
  1. Instruments or devices used to widen an opening or cavity in the body, especially in medical procedures.
    • Dilatators are often sterilized before being used in eye surgeries.
    • The surgeon used a set of dilatators to gently expand the patient's artery.
    • The doctor explained that cervical dilatators help prepare for certain medical exams.
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