Central Till Plains Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. flat areas with rich soil made by glaciers. Example Sentence The central till plains are located in the Midwest. More Example Sentences The central till plains are very productive. Synonyms glacial plains; fertile plains; agricultural land Antonyms mountains; hills Hear It! Say It! Write It! Central Till Plains Switch to cursive Start Share with your friends: