centiday Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. a unit of time equal to one hundredth of a day. Example Sentence In the 19th century M.J. de Rey-Pailhade proposed using the centiday. More Example Sentences Each centiday has twenty-four minutes. Synonyms time unit; duration; interval Antonyms hour Hear It! Say It! Write It! centiday Switch to cursive Start Share with your friends:
