tercentenary

(tʉr′sen ten′ər ē, tər sen′tə ner′ē)

adjective, noun pl. tercentenaries

tricentennial

Origin: L ter, three times (akin to tres, three) + centenary

See tercentenary in American Heritage Dictionary 4

noun pl. ter·cen·ten·a·ries

A 300th anniversary or its celebration.

adjective

Of or relating to a span of 300 years or to a 300th anniversary.

Origin:

Origin: Latin ter, thrice; see tern²

Origin: + centenary

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