field biologist Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. an expert in the study of life and living things who spends a lot of time outside where animals or organisms live or grow Example Sentence My cousin is a field biologist who studies the eating habits of deer. Synonyms life scientist; biologist; scientist Antonyms an insect Hear It! Say It! Write It! field biologist Switch to cursive Start Share with your friends: