LIN'EAL, a. [L. linealis, from linea, line.]

1. Composed of lines; delineated; as lineal designs.

2. In a direct line from an ancestor; as lineal descent; lineal succession.

3. Hereditary; derived from ancestors.

4. Allied by direct descent.

For only you are lineal to the throne.

5. In the direction of a line; as lineal measure.

Lineal measure, the measure of length.