noun. The religion of the druids; the doctrines, rites, and ceremonies of the sacerdotal caste of the ancient Celts. See druid, 1.

noun. The system of religion, philosophy, and instruction, received and taught by the Druids; the rites and ceremonies of the Druids.

noun. The religion, philosophical beliefs, and attendant ritual practices of the druids.

noun. the system of religion and philosophy taught by the Druids and their rites and ceremonies

"Many are even turning back to much older beliefs such as druidism, which still manages to attract hundreds of its gowned adherents to Stonehenge to celebrate the summer solstice every year."

heathenism  pagan religion  paganism