Definition of horizontal
1a : of or relating to the apparent junction of earth and sky : situated near the horizonb : parallel to, in the plane of, or operating in a plane parallel to the horizon or to a baseline : level horizontal distance a horizontal engine
2 : relating to, directed toward, or consisting of individuals or entities of similar status or on the same level horizontal mergers horizontal hostility
horizontal
nounExplore Merriam-Webster
Origin and Etymology of horizontal
see horizon
First Known Use: 1555
HORIZONTAL Defined for English Language Learners
horizontal
playDefinition of horizontal for English Language Learners
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: positioned from side to side rather than up and down : parallel to the ground
HORIZONTAL Defined for Kids
Definition of horizontal for Students
: lying flat or level : parallel to the horizon
horizontally
adverbDefinition of horizontal for Students
: something (as a line or plane) that is parallel to the horizon
Medical Dictionary
horizontal
playMedical Definition of horizontal
1: relating to or being a transverse plane or section of the body
2a: relating to or being transmission (as of a disease) by physical contact or proximity in contrast with inheritance—compare verticalb: of or relating to horizontal gene transfer
Law Dictionary
horizontal
playLegal Definition of horizontal
: relating to, directed toward, or consisting of individuals or entities of similar status or on the same level
horizontally
adverbLearn More about horizontal
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Spanish Central: Translation of horizontal Nglish: Translation of horizontal for Spanish speakers Britannica English: Translation of horizontal for Arabic speakers Britannica.com: Encyclopedia article about horizontal
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