Definition of tercentenary in English:

tercentenary

noun

  • The three-hundredth anniversary of a significant event; a tricentennial.

    ‘events arranged to mark the Library's tercentenary’
    ‘the conference celebrates the tercentenary of the Scottish architect William Adam’
    • ‘Gilbert was more celebrated in his tercentenary year than he will be today.’
    • ‘The focal point of the tercentenary celebrations will take place in Germany - the battalion's current base - next Saturday, when it will receive new colours from the present Duke of Wellington.’
    • ‘In 1916 he was knighted on the stage of Drury Lane at the conclusion of a special, tercentenary performance of Julius Caesar.’

adjective

  • Relating to a three-hundredth anniversary; tricentennial.

    ‘his tercentenary year’

Pronunciation:

tercentenary

/ˌtərˈsen(t)əˌnerē//ˌtərsənˈtenərē/