Which term relates to the tailbone in medical terminology?

The term that relates to the tailbone in medical terminology is coccyx. This term refers specifically to the small bone at the lower end of the vertebral column, commonly known as the tailbone.

Coccyg/o is the combining form derived from coccyx, which is used in medical terminology to create terms related to the coccyx. Using this combining form allows medical professionals to discuss conditions, procedures, or anatomy related to the tailbone in a more descriptive way.

Options like coccigial typically refer to something relating to the coccyx but are not the standard or primary term for the tailbone itself. Similarly, ossicle refers to the small bones in the middle ear and does not connect to the coccyx at all. Thus, while coccyg/o is an important and relevant term in this context, coccyx is the term most directly related to the tailbone.