(Anatomy)the part of a hollow organ (such as the uterus or the gall bladder) that is furthest from the opening (剖)(中空器官,如子宫或胆囊等的)底,基底,基部 ■the upper part of the stomach, which forms a bulge above level of the opening of the oesophagus (furthest from the pylorus) 胃底 ■the part of the eyeball opposite the pupil 眼底