Wiktionary
n. A period of twenty-five years.
WordNet
n. 25 years
Usage examples of "quarter-century".
For more than a quarter-century I have been a voter, usually with votes in two or three constituencies, and never in all that long political life have I seen a single straight fight in an election, but only the dismallest sham fights it is possible to conceive.
Aplysia with Ladislav Tauc in Paris in the 1960s, saw the potential of the organism, initially for the study of short-term processes such as habituation, and over the subsequent quarter-century in New York he has made its study peculiarly his own and that of the generations of researchers who have cut their teeth in his Columbia laboratory.
Divine favor was confirmed in 1297 when, a bare quarter-century after his death, France’s twice-crusading King, Louis IX, was canonized as a saint.
It was strange, sharing Fate with the woman who had succeeded her as Clotho, but evidently she had chosen correctly, on that day a quarter-century ago.
Einstein said that the reason he could spend the last quarter-century of his life in a search (unsuccessful) for a unified field theory was that he could afford to.
Store all the signals, Herkimer, but show us only those that come in every quarter-century.
First there is the near future, the exploration of interplanetary space during the next quarter-century.
At dinner the veal roast was extremely good, and the only thing lacking to make a really excellent meal for Ish was that his Napa Gamay had soured a little in the bottle, after standing for better than a quarter-century, if the vintage-date on the label could be trusted.