tricentennial
[ trahy-sen-ten-ee-uh l ]
/ ˌtraɪ sɛnˈtɛn i əl /
adjective
pertaining to 300 years or a period of 300 years.
marking the completion of such a period: a tricentennial celebration.
noun
a 300th anniversary or its celebration.
Also
tercentenary,
tercentennial.
Origin of tricentennial
First recorded in 1880–85;
tri- +
centennial
Words nearby tricentennial
tricarboxylic,
tricarboxylic acid cycle,
tricarpellary,
trice,
tricentenary,
tricentennial,
tricep,
triceps,
triceps reflex,
triceps surae reflex,
triceratops