medievalrelating to the Middle Ages, roughly from the fifth to the fifteenth centuryMedieval castles were built with thick walls and moats to defend against enemy sieges.NoteMedieval castles were built with thick walls and moats to defend against enemy sieges.Elon.io is an online learning platformWe have an entire course teaching TOEFL Academic Vocabulary grammar and vocabulary.Start learning TOEFL Academic Vocabulary now