Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Happening once every 200 years.
  • adjective Lasting for 200 years.
  • adjective Relating to a 200th anniversary.
  • noun A 200th anniversary or its celebration.

from The Century Dictionary.

  • Consisting of or lasting two hundred years: as, a bicentennial period.
  • Occurring every two hundred years.
  • noun The two hundredth anniversary of an event; a bicentenary.

from the GNU version of the Collaborative International Dictionary of English.

  • noun The two hundredth year or anniversary, or its celebration.
  • adjective Consisting of two hundred years.
  • adjective Occurring every two hundred years.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Relating to the 200th anniversary of an event or happening.
  • adjective Occurring every two-hundred (200) years
  • noun The 200th anniversary of an event or happening.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun the 200th anniversary (or the celebration of it)
  • adjective of or relating to or completing a period of 200 years

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Latin bi two + centum hundred + annus year + -al

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