fluvioglacial Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition adjective. relating to rivers and glaciers. Example Sentence The valley bore the marks of fluvioglacial erosion. More Example Sentences Fluvioglacial features are seen in many landscapes. Synonyms riverine; glacial; aqueous Antonyms non-fluvioglacial; non-glacial Hear It! Say It! Write It! fluvioglacial Switch to cursive Start Share with your friends: