ellipse' Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition plural possessives noun. a shape that looks like a flattened circle; oval Example Sentence The solar ellipses' glow are all very different. Synonyms oval; flattened circle; shape Antonyms square Hear It! Say It! Write It! ellipse' Switch to cursive Start Share with your friends: