胃部 is read as いぶ (ibu) and means gastric region.
いぶ
ibu
い
Chinese "stomach" constellation (one of the 28 mansions)
いぶくろ
dietary needs
いつう
stomach-ache
いかめら
endoscope
いせつじょじゅつ
gastrectomy
かんぶ
affected part
ぐんぶ
military authorities
そうむぶ
general affairs department (bureau)
ようぶ
loins
のうがくぶ
department of agriculture
さいぶ
details
しゅのうぶ
executives