| 释义 |
‖ ischium|ˈɪskɪəm|
Pl. ischia (in 7 erron. -ias).
[L. ischium, a. Gr. ἰσχίον hip-joint; later as now used.]
The lowest of the three parts of the os innominatum, the bone on which the body rests when sitting.
1646Sir T. Browne Pseud. Ep. iv. i. 179 If we define sitting to be a firmation of the body upon the Ischias. 1727–41Chambers Cycl. s.v., In the ischium is a deep cavity..which receives the head of the thigh-bone. 1825J. Nicholson Operat. Mechanic 61 Those parts of this bony circumference, which receive the heads of the thigh-bone above,..called the ischium or coxendix, are the strongest of all. 1854Owen Skel. & Teeth in Circ. Sc., Organ. Nat. I. 183 The hæmapophyses of, probably, the last abdominal vertebra, called ‘ischia’,..are detached from the rest of their segment. 1883Martin & Moale Vertebr. Dissect. 123 The ischium is nearly vertically placed beneath the hinder portion of the ilium. |