A Neurologist is a physician who treats nervous system disorders, including diseases of the spinal cord, nerves, and the brain. A Neurologist examines nerves in the head and neck, muscle movement, balance, reflexes, memory and speech.
(nonâ³linâ²Ä-Är) Not linear; not obeying a linear relationship. In mathematics, a linear equation may be given in the form y = mx + b, where x is the independent variable, and y is the dependent variable. A nonlinear relationship cannot be represented by such an equation.
Definition of spiral for English Language Learners. : 1  to move in a circle around a central point while getting closer to or farther away from it : to move in a spiral. : 2  to greatly increase, decrease, or get worse in a continuous and usually fast and uncontrolled way.