quadricentennial


quad·ri·cen·ten·ni·al

Q0008300 (kwŏd′rĭ-sĕn-tĕn′ē-əl)adj. Quadricentenary.n. A quadricentenary event or celebration.

quadricentennial

(ˌkwɒdrɪsɛnˈtɛnɪəl) na 400th anniversaryadjof, relating to, or celebrating a 400th anniversary

quad•ri•cen•ten•ni•al

(ˌkwɒd rə sɛnˈtɛn i əl)

adj. 1. of, pertaining to, or marking the completion of a period of 400 years. n. 2. a quadricentennial anniversary or its celebration. [1880–85]