quadricentennial

[ kwod-ruh-sen-ten-ee-uh l ]
/ ˌkwɒd rə sɛnˈtɛn i əl /

adjective

of, relating to, or marking the completion of a period of four hundred years.

noun

a quadricentennial anniversary.
its celebration.

Origin of quadricentennial

First recorded in 1880–85; quadri- + centennial

Example sentences from the Web for quadricentennial

British Dictionary definitions for quadricentennial

quadricentennial
/ (ˌkwɒdrɪsɛnˈtɛnɪəl) /

noun

a 400th anniversary

adjective

of, relating to, or celebrating a 400th anniversary