biome

noun

bi·​ome ˈbī-ˌōm How to pronounce biome (audio)
: a major ecological community type (such as tropical rainforest, grassland, or desert)

Examples of biome in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Much of the crop is grown in central and northern states that include parts of the Amazon biome, such as Mato Grosso, Para and Rondonia. — ABC News, 12 Aug. 2026 Small variations in genetics, especially those genes involved in sensing molecules produced in the body or influenced by the gut biome, could affect the results. — Baltimore Sun, Boston Herald, 9 Aug. 2026 Standouts include prebiotics and probiotics to help balance the scalp biome, salicylic acid to slough away dry skin and stave off flakiness, and biotin to support thickness once growth kicks into gear. — Annie Blackman, InStyle, 2 Aug. 2026 The flat, accessible boardwalk runs in a quarter-mile loop along the sand, giving you an up-close look at this unique biome. — Cu Fleshman, Travel + Leisure, 16 July 2026 See All Example Sentences for biome

Word History

Etymology

bi- entry 2 + -ome

First Known Use

1916, in the meaning defined above

Time Traveler
The first known use of biome was in 1916

Rhymes for biome

See All Rhymes for biome

Browse Nearby Words

biomathematics
biome
biomechanical
See all Nearby Words

Cite this Entry

“Biome.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biome. Accessed 14 Aug. 2026.

Copy Citation

Kids Definition

biome

noun
bi·​ome ˈbī-ˌōm How to pronounce biome (audio)
: a major type of ecological community

More from Merriam-Webster on biome

Nglish: Translation of biome for Spanish Speakers

Britannica.com: Encyclopedia article about biome

Last Updated: - Updated example sentences
Love words? Need even more definitions?

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

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of vacuous

See Definitions and Examples »

Popular in Grammar & Usage

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

7 Pairs of Commonly Confused Words

Is that lie 'bald-faced' or 'bold-faced'?

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?
See More

Popular in Wordplay

See More

Words from the 'Odyssey'

The Longest Long Words List

It's a Scorcher! Words for the Summer Heat

The Words of the Week - Aug. 14

12 Lovely and Unusual Words for the Natural World
See More

Popular

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

Words from the 'Odyssey'

The Longest Long Words List
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
image of a green cube out of place in a lineup of red spheres
Odd Word Out: Synonyms Vol. 2 Quiz Figure out which word isn't like the others.
See All