noun
encyclopedic knowledge and strong memory
Describes a person who has read widely and remembers what they have learned. Often used as a compliment for a well-read, knowledgeable person.
彼は博覧強記で、どんな質問にもすぐ答えられる。
He has encyclopedic knowledge and a strong memory, and can answer any question immediately.
A yojijukugo composed of 博覧 (extensive reading) and 強記 (strong memory). The exact historical origin is uncertain, but it is a classical Chinese-derived phrase used to praise scholarly erudition.