The term "biology" was first used by Lamarck and Treviranus in 1802. The word originates from the Greek language, where "bios" means life and "logos" means discourse.
The term itself was likely not coined by any single person but rather developed independently by these two scientists who were working on similar ideas related to the study of living organisms. It's interesting to note that both Lamarck and Treviranus were prominent naturalists and researchers of their time, and their work contributed significantly to the development of biology as a field.