coccy, coccyg/o (8/41)

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coccy or coccyg/o is a combining form that refers to “coccyx (tailbone)”.

The coccyx is a triangle-shaped piece of bone that forms the bottom end of the spine beneath the sacrum. Even though the tailbone is regarded as unnecessary in the human body, it serves a purpose in the pelvis. As an example, the coccyx is a part of a three-part support for a person in the sitting position.