horizontal

Definition

Perpendicular to the vertical; parallel to the plane of the horizon; level, flat.

Etymology

Borrowed from Middle French horizontal, from horizon, horizonte, from Latin horizōn (stem horizont-).

Example Sentences

• "horizontal lines"
• "Power is derived from a British United Traction Limited "A"-type 150-h.p. six-cylinder horizontal diesel engine; this drives through a fluid flywheel, and thence through a free wheel unit to a four-speed epicyclic gearbox."
• "[…] a pair of pauldrons with the light horizontal bar which in later years developed into the high neckguard of the sixteenth century; numbers of gauntlets, visors of helmets, and other pieces, the handling of which is a sheer joy […]"