胃液 is read as いえき (ieki) and means gastric juice.
いえき
ieki
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
けつえき
blood
えき
liquid
せいえき
semen
ようえき
solution (liquid)
たいえき
body fluid
げんえき
undiluted solution (of)
すいようえき
(translucent) aqueous solution