Meaning of “biological” - Learner’s Dictionary

biological

adjective uk us /ˌbaɪəˈlɒdʒɪkəl/
STUDY

B2 relating to the study of living things such as plants and animals:

biological sciences
USE

using living things or poisons made from living things:

biological weapons
biologically adverb

(Definition of “biological” from the Cambridge Learner’s Dictionary © Cambridge University Press)