From Longman Dictionary of Contemporary Englishyear-longˈyear-long, yearlong /ˈjɪəlɒŋ, ˈjɜː- $ ˈjɪrlɒːŋ/ adjective [only before noun] PERIOD OF TIMEcontinuing for a year or all through the year a year-long study of the problem
Examples from the Corpus
year-long• Uric acid production had helped this animal to survive a year-long fast without one drink of water.• For a $ 500 initiation fee, plus $ 85 a month, girls will receive a year-long membership in the academy.• This stemmed from a need to give the regular cast holidays during the otherwise punishing year-long recording schedule.• I am 26 and have just lost my virginity after a year-long relationship. 