A horizon

noun
\ ˈā- How to pronounce A horizon (audio) \

Definition of A horizon

: the uppermost dark-colored layer of a soil consisting largely of partly disintegrated organic debris

First Known Use of A horizon

1896, in the meaning defined above

Keep scrolling for more

Learn More about A horizon

Time Traveler for A horizon

Time Traveler

The first known use of A horizon was in 1896

See more words from the same year

Statistics for A horizon

Cite this Entry

“A horizon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/A%20horizon. Accessed 30 Oct. 2020.

Comments on A horizon

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

WORD OF THE DAY

Test Your Vocabulary

Here Be Dragons: A Creature Identification Quiz

  • monster werewolf photo
  • Which is a synonym of werewolf?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Syn City

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!