### Linear

**LIN'EAR**, *adjective* [Latin linearis.]

**1.** Pertaining to a line; consisting of lines; in a straight direction.

**2.** In botany, like a line; slender; of the same breadth throughout, except at the extremities; as *linear* leaf.

Linear numbers, in mathematics, such as have relation to length only; such is a number which represents one side of a plane figure. If the plane figure is a square, the *linear* figure is called a root.

Linear problem, that which may be solved geometrically by the intersection of two right lines.