sepals Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition plural noun. the outer parts of a flower that protect it. Example Sentence The flower buds opened and the sepals unfurled. More Example Sentences Sepals are usually green and leaf-like. Synonyms flower parts; petals; bracts Antonyms root Hear It! Say It! Write It! sepals Switch to cursive Start Share with your friends: