transcription, транскрипция: [ ˈkäk-siks ]
noun
( plural coc·cy·ges ˈkäk-sə-ˌjēz ; also coc·cyx·es ˈkäk-sik-səz)
Etymology: New Latin, from Greek kokkyx cuckoo, coccyx; from its resemblance to a cuckoo's beak
Date: 1615
: 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