Retinol and Retin-A are essentially the same, except retinol is exclusively an over-the-counter solution. Both products are retinoids designed to promote skin cell rejuvenation, according to WebMD.
Full Definition of UNDERGRADUATE. : a student at a college or university who has not received a first and especially a bachelor's degree. â undergraduate adjective.See undergraduate defined for English-language learners. See undergraduate defined for kids.ull Definition of UNDERGRADUATE. : a student at a college or university who has not received a first and especially a bachelor's degree. â undergraduate adjective. See undergraduate defined for English-language learners.
unÂ·derÂ·gradÂ·uÂ·ate (Å­nâ²dÉr-grÄjâ²oÍo-Ä­t) n. A college or university student who has not yet received a bachelor's or similar degree. adj. 1. Of, relating to, or characteristic of undergraduates: undergraduate courses; undergraduate humor. 2. Having the standing of an undergraduate: an undergraduate transfer student.