| adj. | 1. | (Math.) Not depictable graphically as a straight line; not changing by a constant amount for each unit of time, distance, or other independent variable. Opposite of |
| 2. | (Math.) Containing variables of greater than the first degree; - of an equation. Opposite of | |
| 3. | (Physics) Represented by equations containing variables of greater than the first degree; - of physical processes or relationships. Opposite of |
| Adj. | 1. | nonlinear - designating or involving an equation whose terms are not of the first degree |