I. “+ adjective
Etymology: semi- + centennial, adjective
: of or relating to a 50th anniversary : occurring in a 50th year
II. noun
Etymology: semi- + centennial, n.
: a 50th anniversary or its celebration
I. “+ adjective
Etymology: semi- + centennial, adjective
: of or relating to a 50th anniversary : occurring in a 50th year
II. noun
Etymology: semi- + centennial, n.
: a 50th anniversary or its celebration
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012