Life-science definition

Any of several branches of science, such as microbiology, zoology, botany, or ecology, that deal with living organisms and their organization, life processes, and relationships to each other and their environment.

Any of various sciences, as botany or zoology, dealing with living organisms and their life processes.

Any of several branches of science, such as microbiology, zoology, botany, or ecology, that deal with living organisms and their organization, life processes, and relationships to each other and their environment.

Any of several branches of science, such as biology, medicine, and ecology, that study the structural and functional organization of living organisms and their relationships to each other and the environment.