1 example sentence using tercentenary.
Tercentenary used in a sentence
Tercentenary in a sentence as a noun
The greater part of the rest were snatched out of my reach by a syndicate which hoped to sell them at a high price, probably in America, on the occasion of the recent tercentenary.
Tercentenary definitions
noun
the 300th anniversary (or the celebration of it)
See also: tercentennial triennial