physicists Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. a specialist in the science that treats of the phenomena associated with matter and energy Example Sentence The physicists have attempted to determine the size of the macrocosm. Synonyms expert in physics; physics specialist; scientist Antonyms linguist Hear It! Say It! Write It! physicists Switch to cursive Start Share with your friends: