Definition of Galahad from the Oxford Advanced Learner's Dictionary



; NAmE
(also Sir Galahad)
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one of the knights of King Arthur's Round Table. According to the legend he was the most innocent and morally good of all the knights, and because of this he succeeded in finding the Holy Grail. Sometimes people are humorously called Sir Galahad if they have been very kind or polite to somebody He did his Sir Galahad act and helped her with her luggage.