blue-green Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. oradjective. a color about midway between blue and green in the spectrum Example Sentence The sea was a blue-green color today. Spelled with a hyphen. Synonyms bluish green; cyan; teal Antonyms white Hear It! Say It! Write It! blue-green Switch to cursive Start Share with your friends: