1. fiftieth - Noun
2. fiftieth - Adjective
3. fiftieth - Adjective Satellite
Next in order after the forty-ninth; -- the ordinal of fifty.
Consisting of one of fifty equal parts or divisions.
One of fifty equal parts; the quotient of a unit divided by fifty.
Source: Webster's dictionaryThen, too, the columns at the corners should be made thicker than the others by a fiftieth of their own diameter, because they are sharply outlined by the unobstructed air around them, and seem to the beholder more slender than they are. Vitruvius
As a special occasion, the MCC committee arranged the 1898 Gentlemen v Players match to coincide with his fiftieth birthday and he celebrated the event by scoring 43 and 31 not out, though handicapped by lameness and an injured hand. Source: Internet
By 1857 he was so well-loved that his friend Henry Wadsworth Longfellow wrote "The fiftieth birthday of Agassiz" in his honor. Source: Internet
Davy spent the winter in Rome, hunting in the Campagna on his fiftieth birthday. Source: Internet
Fellini died in Rome on 31 October at the age of 73, a day after his fiftieth wedding anniversary. Source: Internet
He originally intended to retire at the end of 1882, the fiftieth anniversary of his entry into politics, but in the event did not do so. Source: Internet