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A promontory in southwest England northwest of Plymouth. The site of the ruins of a 12th-century castle, it is said to be the birthplace of King Arthur.
(Placename) a promontory in SW England, on the W coast of Cornwall: ruins of Tintagel Castle, legendary birthplace of King Arthur
Tin•tag′el Head′(tɪnˈtædʒ əl)
a cape in SW England, on the W coast of Cornwall.