Abbreviation of 博物学 (natural history). Often used in compound words like 博物館 (museum).
See also: 博物学 (はくぶつがく)
He has a wealth of knowledge about natural history.
In the field of natural history, Darwin's theory of evolution is famous.
wide learning; broad knowledge
Original meaning; refers to extensive knowledge across many fields. Rarely used independently in modern Japanese.
He was blessed with wide learning and was well-versed in every field.
natural history specimen