a legendary king of the Britons in the sixth century ad, who led Celtic resistance against the Saxons: possibly based on a historical figure; represented as leader of the Knights of the Round Table at Camelot
2.
Chester Alan. 1830--86, 21st president of the US (1881--85)
3.
informal (Austral), (NZ) not know whether one is Arthur or Martha to be in a state of confusion
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a chattering or flighty, light-headed person.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
a stew of meat, vegetables, potatoes, etc.
a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
masc. proper name, from M.L. Arthurus/Arturus, from Welsh arth "bear," cognate with Gk. arktos, L. ursus (see Arctic). Arthurian "pertaining to the series of tales of British King Arthur and his knights, is first attested 1853.