Entry 1 sense Webster, 1913 Endoscopy /ĕnˌ-dôs'-käp-ē/ · En·dos·co·py · IPA /ɛnˈdɔ.skə.pi/ 01 n. The art or process of examination or treatment by means of an endoscope. 1. The art or process of examination or treatment by means of an endoscope.(Med.)