SABBATICAL

[adjective] [not gradable], [noun] - (of or being) a period of time when college or university teachers are allowed to stop their usual work in order to study or travel, usually while continuing to be paida sabbatical year/termsabbatical leaveSome lecturers take/have a sabbatical every seven years.She isn't here this year - she's on sabbatical, finishing off her book.