Bible Dictionaries
Tercentenary

Webster's Dictionary

(1):

(a.) Including, or relating to, an interval of three hundred years.

(2):

(n.) The three hundredth anniversary of any event; also, a celebration of such an anniversary.

Bibliography Information
Webster, Noah. Entry for 'Tercentenary'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​t/tercentenary.html. 1828.