noun, takes genitive case の

  1. pylorus, opening of stomach into duodenum.

Variations

Pronunciation Kanji Kana Is Common
幽門 ゆうもん

Contained Kanji Breakdown

seclude, confine to a room, deep
ユウ かす.か ふか.い (8th, N1)
mountain
やま サン セン (1st, N5)
minute, extremely small, tiny
short thread radical (no. 52)
ヨウ ちいさい (Kentei 1)
gate, counter for cannons
モン かど と (2nd, N2)