bio·geo·sci·ence | \¦bī-(ˌ)ō-ˌjē-ō-¦sī-ən(t)s \
plural biogeosciences

Definition of biogeoscience 

: an interdisciplinary field of study integrating geoscience and biological science : the study of the interaction of biological and geological processes Over the past decade, interest in the biogeosciences has expanded at a remarkable rate. This approach to the study of the Earth is by its very nature interdisciplinary and requires an enormous wealth of knowledge.— Neil S. Suits, Eos, 30 Jan. 2001

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First Known Use of biogeoscience

1998, in the meaning defined above

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The first known use of biogeoscience was in 1998

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