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Definition of "semicentennial" [sem•i•cen•ten•ni•al]

  • Marking the 50th anniversary of an event. (adjective)
  • A 50th anniversary or its celebration. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "semicentennial" in a sentence
  • "American Physiological Society semicentennial, 1881-1937_; Baltimore,"
  • "It is against the law, but conformable to usage, and the wedded pairs are subject only to a semicentennial ejection, so that I do not know where a young literary couple could more charmingly begin their married life."
  • "That young medical student and dentist was Dr.W. T.G. Morton, whose monument may be seen in the Boston Public G.rden, and in whose honor the semicentennial of the discovery of anæsthesia has but recently been celebrated."
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