filaments Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition plural noun. thin strands of material or fibers. Example Sentence The spider spun filaments to create its web. More Example Sentences Filaments can be found in many materials. Synonyms threads; strands; fibers Antonyms chunks; blocks Hear It! Say It! Write It! filaments Switch to cursive Start Share with your friends: