TRANSVERSAL
transverse, cross(a), transversal, thwartwise
(adjective) extending or lying across; in a crosswise direction; at right angles to the long axis; “cross members should be all steel”; “from the transverse hall the stairway ascends gracefully”; “transversal vibrations”; “transverse colon”
Source: WordNet® 3.1
Etymology
Adjective
transversal (comparative more transversal, superlative most transversal)
Running or lying across; transverse
Noun
transversal (plural transversals)
A line which traverses or intersects any system of other lines transversely.
(mathematics) A set containing one member from each of a collection of disjoint sets.
Source: Wiktionary
Trans*ver"sal, a. Etym: [Cf. F. transversal. See Transverse.]
Definition: Running or lying across; transverse; as, a transversal line.
– Trans*ver"sal*ly, adv.
Trans*ver"sal, n. Etym: [Cf. F. transversale.] (Geom.)
Definition: A straight line which traverses or intersects any system of
other lines, as a line intersecting the three sides of a triangle or
the sides produced.
Source: Webster’s Unabridged Dictionary 1913 Edition