SEMICENTENNIAL
Meaning of SEMICENTENNIAL in English
transcription, транскрипция: [ -sen-ˈte-nē-əl ]
noun
Date: 1859
: a 50th anniversary or its celebration
• semicentennial adjective
Merriam-Webster's Collegiate English vocabulary.
Энциклопедический словарь английского языка Merriam Webster.
2003