sabbatical yearEnglishOxford New American Dictionarysabbatical year /səˈbadəkəl yi(ə)r, səˈbædəkəl jɪ(ə)r/ ▸ noun 1 a year's sabbatical leave. 2 (in biblical times) a year observed every seventh year under the Mosaic law as a “sabbath” during which the land was allowed to rest.