horizontal

adjective
hor·​i·​zon·​tal | \ ˌhȯr-ə-ˈzän-tᵊl How to pronounce horizontal (audio) , ˌhär-\

Definition of horizontal

1a : of or relating to the apparent junction of earth and sky : situated near the horizon
b : 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
3 medical : relating to or being transmission (as of a disease) by physical contact or proximity in contrast with inheritance Genes are normally inherited from parents, but they can also be inserted into a genome by viruses, plasmids, and other foreign agents—a phenomenon called horizontal transfer.— Stephan Reebs — compare vertical sense 4

Keep scrolling for more

Other Words from horizontal

horizontal noun
horizontality \ ˌhȯr-​ə-​ˌzän-​ˈta-​lə-​tē How to pronounce horizontality (audio) , ˌhär-​ \ noun
horizontally \ ˌhȯr-​ə-​ˈzän-​tᵊl-​ē How to pronounce horizontally (audio) , ˌhär-​ \ adverb

Examples of horizontal in a Sentence

Recent Examples on the Web

Its 493 focus points cover 90 percent of the image area (both vertical and horizontal). Chris Welch, The Verge, "Nikon strikes back at Sony with first full-frame mirrorless cameras," 23 Aug. 2018 Look out for spillage, a band that doesn't lay horizontal, and tightness even on the last hook — all signs your bra is too small. Amanda Hawkins, Good Housekeeping, "4 Signs It's Time for New Underwear and Bras," 9 Feb. 2019 The iPad Pro’s thinner bezel means much more screen in the familiar body size, and Face ID even works well when the tablet is horizontal in a keyboard case. David Pierce, WSJ, "Apple’s New iPad Pro: Great Tablet, Still Can’t Replace Your Laptop," 5 Nov. 2018 Prayer then helps bring about a horizontal and vertical unification of our people, unification so desperately needed today. Rabbi Avi Weiss, Jewish Journal, "Why do we pray with a set text?," 2 July 2018 The horizontal baffles create a stable, supportive sleeping surface, and foil panels stitched inside help hold warm air near your body, adding necessary nighttime warmth underneath you. Wes Siler, Outside Online, "Plan Your First Backpacking Trip," 13 June 2018 With this wind direction, a righty—pointing the nose of the ball slightly to the left—is at risk of the wind turning the ball too far toward its horizontal axis. Jenny Vrentas, SI.com, "Punting Takes a Left Turn," 11 Jan. 2018 Instagram has quietly started testing a horizontal feed for some users, a huge sideways shift from the vertically-scrolling user experience that’s been the norm since the app launched. Chaim Gartenberg, The Verge, "Instagram is testing a new horizontal feed," 27 Dec. 2018 The technique involves pouring layers of paint on a horizontal surface and letting whorls, blobs, and other shapes form over time. Jennifer Ouellette, Ars Technica, "Study: modern masters like Jackson Pollock were “intuitive physicists”," 26 Dec. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'horizontal.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of horizontal

1555, in the meaning defined at sense 1a

History and Etymology for horizontal

see horizon

Keep scrolling for more

Learn More about horizontal

Share horizontal

Statistics for horizontal

Last Updated

12 Mar 2019

Look-up Popularity

Time Traveler for horizontal

The first known use of horizontal was in 1555

See more words from the same year

Keep scrolling for more

More Definitions for horizontal

horizontal

adjective

English Language Learners Definition of horizontal

: positioned from side to side rather than up and down : parallel to the ground

horizontal

adjective
hor·​i·​zon·​tal | \ ˌhȯr-ə-ˈzän-tᵊl How to pronounce horizontal (audio) \

Kids Definition of horizontal

 (Entry 1 of 2)

: lying flat or level : parallel to the horizon

Other Words from horizontal

horizontally adverb

horizontal

noun

Kids Definition of horizontal (Entry 2 of 2)

: something (as a line or plane) that is parallel to the horizon

horizontal

adjective
hor·​i·​zon·​tal | \ ˌhȯr-ə-ˈzänt-ᵊl, ˌhär- How to pronounce horizontal (audio) \

Medical 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 vertical
b : of or relating to horizontal gene transfer

Other Words from horizontal

horizontally \ -​ᵊl-​ē How to pronounce horizontally (audio) \ adverb

Keep scrolling for more

horizontal

adjective
hor·​i·​zon·​tal | \ ˌhȯr-ə-ˈzän-təl, ˌhär- How to pronounce horizontal (audio) \

Legal Definition of horizontal

: relating to, directed toward, or consisting of individuals or entities of similar status or on the same level

Other Words from horizontal

horizontally adverb

Keep scrolling for more

More from Merriam-Webster on horizontal

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

Comments on horizontal

What made you want to look up horizontal? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a shady place in a garden or forest

Get Word of the Day daily email!

Test Your Vocabulary

Original Meanings Quiz

  • rembrandt-painting-a-young-scholar-and-his-tutor
  • Which of the following is the earliest known sense of the word awe?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!