- of or near the horizon: now chiefly in technical usage: horizontal parallax
- parallel to the plane of the horizon; not vertical
- placed, operating, or acting chiefly in a direction parallel to the horizon
- flat and even; level
- at, or made up of elements at, the same levels of industrial production and distribution, or of status
Origin of horizontalModern Latin horizontalis from Classical Latin horizon (gen. horizontis): see horizon
- a horizontal line, plane, etc.
- position parallel to the horizon