naturalist /ˈnæ.tʃə.ɹə.lɪst/noun 4adjective 1forms 1 noun4 •An expert in natural history or the study of plants and animals.The beauty and brilliancy of this insect are indescribable, and none but a naturalist can understand the intense excitement I experienced when I at length captured it. — 1869 •A person who believes in or advocates the tenets of philosophical or methodological naturalism. •A creative artist who attempts to faithfully represent nature; an adherent of artistic naturalism. •(no longer used) A natural philosopher; a scientist.It has also been asserted, by some naturalists, that men do not attain their full growth and strength till thirty; but that women arrive at maturity by twenty. — 1791 adjective1 •Synonym of naturalistic.Trinity received “Birds of America” in 1900 as a gift from Dr. Gordon Russell, a physician and alumnus who was a collector of ornithological and naturalist art. — 1985 formsnaturalists