The Collaborative International Dictionary
Coccygeal \Coc*cyg"e*al\, a. (Anat.) Of or pertaining to the coccyx; as, the coccygeal vertebr[ae].
Coccygeal glands (Zo["o]l.), glands situated at the base of the tail of birds. They secrete the oil with which the plumage is dressed.
Wiktionary
a. Relating to the coccyx.
WordNet
adj. of or relating to or near the coccyx
Wikipedia
Usage examples of "coccygeal".
These are the coccygeal vertebrae, and there is one final pair of coccygeal nerves.
Broca and others claim that the sacrum and the coccyx represent the normal tail of man, but examples are not infrequent in which there has been a fleshy or bony tail appended to the coccygeal region.
To summarize: 8 cervical nerves, 12 thoracic nerves, 5 lumbar nerves, 5 sacral nerves, and i coccygeal nerve make up a total of 31 pairs of spinal nerves.
These are the coccygeal vertebrae, and there is one final pair of coccygeal nerves.