|1.||Compare horizontal at right angles to the horizon; perpendicular; upright: a vertical wall|
|2.||extending in a perpendicular direction|
|3.||at or in the vertex or zenith; directly overhead|
|4.||economics of or relating to associated or consecutive, though not identical, stages of industrial activity: vertical integration; vertical amalgamation|
|5.||of or relating to the vertex|
|6.||anatomy of, relating to, or situated at the top of the head (vertex)|
|7.||a vertical plane, position, or line|
|8.||a vertical post, pillar, or other structural member|
|[C16: from Late Latin verticālis, from Latin |
vertical ver·ti·cal (vûr'tĭ-kəl)
Of or relating to the vertex of the head.
Being or situated at right angles to the horizon; upright.