generally any arch shaped structure (but often it refers to the arched roof of an anatomical space)
an arched bundle of white fibers at the base of the brain by which the hippocampus of each hemisphere projects to the contralateral hippocampus and to the thalamus and mamillary bodies
双语例句
1. The principle symptoms was as follows , abnormal menstruation ( 80.9 % ) dysmenorr - hea ( 65.8 % ) , sterility ( 19.15 % ) , uterus enlargement ( 74.5 % ) , adherent mass in adnexa ( 12.6 % ) , node of post vaginal fornix ( 4.3 % ).