Main Entry: en·do·scope

Pronunciation: \ˈen-də-ˌskōp\

Function: noun

Etymology: International Scientific Vocabulary

Date: 1861

: an illuminated usually fiber-optic flexible or rigid tubular instrument for visualizing the interior of a hollow organ or part (as the bladder or esophagus) for diagnostic or therapeutic purposes that typically has one or more channels to enable passage of instruments (as forceps or scissors)

— en·dos·co·py \en-ˈdäs-kə-pē\ noun