arachnids Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. A group of animals that includes spiders, scorpions, and mites. Example Sentence Arachnids, such as spiders and scorpions, have eight legs. Synonyms spiders; scorpions; mites Antonyms mammals; birds Hear It! Say It! Write It! arachnids Switch to cursive Start Share with your friends:
