LINEAL

lineal. Lineal, a. descending or going on in a right line

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Lin″e‐al (lĭn″ē̍‐al), a. [[L. linealis belonging to a line, fr. linea line: cf. F. linéal. See 3d Line.]] 1. 1. Descending in a direct line from an ancestor; hereditary; derived from ancestors; — opposed to collateral; as, a lineal descent or a lineal descendant.
The prime and ancient right of lineal succession. Locke. 2. 2. Inheriting by direct descent; having the right by direct descent to succeed (to).
For only you are lineal to the throne. Dryden. 3. 3. Composed of lines; delineated; as, lineal designs.
4. 4. In the direction of a line; of or pertaining to a line; measured on, or ascertained by, a line; linear; as, lineal magnitude.
Lineal measure, the measure of length; — usually written linear measure.