frit fly Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. a minute European fly Oscinella frit the larvae of which are serious pests of wheat and other cereals Example Sentence The larvae of the frit fly will damage wheat. Synonyms European fly; minute fly; pest Antonyms bird Hear It! Say It! Write It! frit fly Switch to cursive Start Share with your friends: