longitudinal

Lon`gi*tu"di*nal, a. Etym: [Cf. F. longitudinal.] 1. Of or pertaining to longitude or length; as, longitudinal distance. 2. Extending in length; in the direction of the length; running lengthwise, as distinguished from transverse; as, the longitudinal diameter of a body. Cheyne. Lon`gi*tu"di*nal, n. Defn: A railway sleeper lying parallel with the rail.

---