- IPA: /ˌba.ˈjɔ.lə.dʒɪ/
- (uncountable) Biology is a type of science that studies living things like plants and animals.
- It is required for students to study biology.
- (countable) The biology of an animal, plant, or other living thing is how its body works.
- The biology of cats is different from that of dogs in several ways.