Longman Dictionary of Contemporary English homepage

endoscope

 noun
     
Related topics: Hospital, Illness and Disability, Tools
en‧do‧scope [countable] medical
an instrument used by doctors who are performing a medical operation on someone. It is a very small camera with a powerful lens, which is pushed into the body through a very small hole and sends pictures back to the doctor.
Definition from the Longman Dictionary of Contemporary English
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