tricentennial

[trahy-sen-ten-ee-uhl]

tri·cen·ten·ni·al

[trahy-sen-ten-ee-uhl]
adjective
1.
pertaining to 300 years or a period of 300 years.
2.
marking the completion of such a period: a tricentennial celebration.
noun
3.
a 300th anniversary or its celebration.

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Tricentennial has a plethora of syllables.
So is supercalifragilisticexpialidocious. Does it mean:
(used as a nonsense word by children to express approval or to represent the longest word in English.)
a white, crystalline, water-insoluble, powerful high explosive, C3H6N6O6, used chiefly in bombs and shells.
Also, tercentenary, tercentennial.


Origin:
1880–85; tri- + centennial
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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World English Dictionary
tricentenary or tricentennial (ˌtraɪsɛnˈtiːnərɪ, ˌtraɪsɛnˈtɛnɪəl)
 
adj
1.  of or relating to a period of 300 years
2.  of or relating to a 300th anniversary or its celebration
 
n , -tenaries, -tennials
3.  an anniversary of 300 years or its celebration
 
tricentennial or tricentennial
 
adj
 
n

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