coccyx
coc·cyx
noun \ˈkäk-siks\ plural coc·cy·ges\ˈkäk-sə-ˌjēz\ also coc·cyx·es\ˈkäk-sik-səz\
Definition of COCCYX
: a small bone that articulates with the sacrum and that usually consists of four fused vertebrae which form the terminus of the spinal column in humans and tailless apes
See Origin of COCCYX
New Latin, from Greek kokkyx cuckoo, coccyx; from its resemblance to a cuckoo's beak
First Known Use: 1615
Learn More About COCCYX
Browse
Seen & Heard 
What made you want to look up coccyx? Please tell us where you read or heard it (including the quote, if possible).
