| 释义 |
coccyx Anat.|ˈkɒksɪks|
[L. coccȳx, a. Gr. κόκκυξ, -ῡγ- cuckoo, also in Galen the os coccygis, or cuckoo bone, so called because in man it was supposed to resemble the bill of the cuckoo.]
The small triangular bone appended to the point of the sacrum and forming the termination of the spinal column in man, formed by the coalescence of four rudimental coccygeal vertebræ; also, an analogous part in birds or other animals.
1615Crooke Body of Man 493 In Dogs and Apes there are three coniugations proceeding out of the Coccyx or rump-bone. 1754–64Smellie Midwif. I. 75 The Coccyx is moveable at its connection with the Sacrum as are also the four bones that compose it. 1879tr. De Quatrefages' Human Species 52 In the sheep of central Asia the tail disappears and is reduced to a simple coccyx. |