biological adjective definition in Cell biology topic from the Oxford Advanced Learner's Dictionary

biological

 adjective: Cell biology topic
1 connected with the science of biology the biological sciences2 connected with the processes that take place within living things the biological effects of radiation the biological control of pests (= using living organisms to destroy them, not chemicals) a child’s biological parents (= natural parents, not the people who adopted him/her)3 (of washing powder, etc.) using enzymes (= chemical substances that are found in plants and animals) to get clothes, etc. clean biological and non-biological powders