내시경이 · 내시경을
endoscope; endoscopy
Example
내일 위 내시경을 해서 오늘 밤부터 굶어야 해요.
I'm having a gastroscopy tomorrow, so I have to fast from tonight.
Word parts
내 inside+시 view+경 lens
Literally 'inside-viewing lens'. -경 = lens: 안경, 망원경.
Good to know
수면 내시경, endoscopy under light sedation, is very common in Korean checkups.
Related words