hemispheres Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition plural noun. half of a sphere or globe. Example Sentence We studied the northern and southern hemispheres. More Example Sentences One hemisphere is north of the equator. Synonyms halves; sections; parts Antonyms whole earth; entire globe Hear It! Say It! Write It! hemispheres Switch to cursive Start Share with your friends: