Horizontal definition

Horizontal

Topics Horizontal Definition

WordNet

adjective

(1) Parallel to or in the plane of the horizon or a base line

"A horizontal surface"

noun

(2) Something that is oriented horizontally

WiktionaryText

Adjective

perpendicular to the vertical; parallel to the plane of the horizon; level, flat.
Pertaining to the horizon.
- 1667: As when the Sun new ris'n / Looks through the Horizontal misty Air — John Milton, Paradise Lost, Book 1, ll. 594-5

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