Definition of "closed-book" []

• Referring to exams in which external resources such as glossaries, study notes, calculators, etc are prohibited (adjective)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "At the final level folks had to write a closed-book exam."
• "The researchers seemed impressed that practice retrieving facts worked better than making concept maps with the text in front of them at preparing students for a closed-book test even when the test itself involved making concept maps."
• "I am sorry to inform you that there will be a closed-book final examination at the end of the course."