The habit of grinding, gnashing, grating, or clenching the teeth is termed bruxism, and millions of adults and children are affected by this condition. While its exact cause is unknown, most experts believe that bruxism can occur as a response to increased psychological stress.
Historical Examples.  1 They don't have much choice, Captain Feldman said, always the realist. 2  Captain Feldman was a realist but he was also a deeply moral man. 3  In the first place, it does not mean that Greek art is what we call ânaturalistâ or ârealistâ.  4 I believe you are a realist, Henry, said his wife playfully.
2. a philosopher who believes that no single explanation can account for all the phenomena of nature. 3. someone who believes that distinct ethnic or cultural or religious groups can exist together in society. Familiarity information: PLURALIST used as a noun is uncommon. Dictionary entry details.