mantises Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. large, typically green insects with long front legs that are held in a position that suggests prayer. Example Sentence The children were fascinated by the mantises in the insect exhibit. Synonyms praying insects; bugs; predators Antonyms prey; victim Hear It! Say It! Write It! mantises Switch to cursive Start Share with your friends: