megapixels Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition plural noun. a unit of measurement for image resolution. it equals one million pixels. Example Sentence The camera has 12 megapixels. More Example Sentences More megapixels mean clearer pictures. Synonyms image quality; resolution size; pixels Antonyms low resolution; blurry image Hear It! Say It! Write It! megapixels Switch to cursive Start Share with your friends: