QUINCENTENNIAL
Meaning of QUINCENTENNIAL in English
/kwin'sen ten"ee euhl/ , adj.
pertaining to or marking a period of 500 years.
[ 1880-85; QUIN(QUE-) + CENTENNIAL ]
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012