aque·​ous | \ˈā-kwē-əs, ˈa- \

Definition of aqueous 

1a : of, relating to, or resembling water

b : made from, with, or by water an aqueous solution

2 medical : of or relating to the aqueous humor

Examples of aqueous in a Sentence

Recent Examples on the Web

The line’s new launch, Yin Transformation—an aqueous blend of rose, Calypso orchid, and ylang-ylang—is one route to tranquility, offering up a ritual to root into the present. Laura Regensdorf, Vogue, "The Best New Perfumes Capture the Zeitgeist, From #MeToo to Wellness Mania," 25 Aug. 2018 First, air is channelled by fans onto a honeycombed plastic slab called a contactor, where CO2, which is acidic, reacts with aqueous potassium hydroxide, which is alkaline. The Economist, "Extracting carbon dioxide from the air is possible. But at what cost?," 7 June 2018 The habitable remainder contains neighborhoods with different aqueous bodies and wealth indexes. Julie Lasky, New York Times, "Shelter Island, N.Y.: A Paradise That Has Its Challenges," 16 May 2018 The sense of pictorial space is at once deep, aqueous and nonliteral. Leah Ollman,, "Markus Amm's luminous paintings, like portals into liquid worlds of color," 13 Mar. 2018 Barring aqueous contamination, there will be plenty of wildlife along the river, so Bailey will bring a fishing rod and animal traps. Cam Wolf, GQ, "The Apocalypse Preppers Who Think Coffee Will Save Them," 18 Dec. 2017 Today her songbook encompasses Chilean folk, aqueous original compositions, Afro-Cuban classics and modern jazz tunes by her contemporaries. New York Times, "Pop, Rock and Jazz in NYC This Week," 31 Aug. 2017 Anyone who wants to use cinnamon to lower cholesterol or blood sugar would be well advised to stick with an aqueous extract, because coumarin is not water-soluble. Teresa Graedon, The Seattle Times, "Statins causing muscle aches? Spice to the rescue," 30 July 2017 The show culminates in two floors of aqueous, immersive environments, radiant with color, one completed this year. Roberta Smith, New York Times, "‘Pipilotti Rist: Pixel Forest’," 27 Oct. 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'aqueous.' 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 aqueous

1646, in the meaning defined at sense 1a

History and Etymology for aqueous

Medieval Latin aqueus, from Latin aqua

Keep scrolling for more

Learn More about aqueous

Statistics for aqueous

Last Updated

22 Nov 2018

Look-up Popularity

Time Traveler for aqueous

The first known use of aqueous was in 1646

See more words from the same year

Keep scrolling for more

More Definitions for aqueous



English Language Learners Definition of aqueous

: containing water or similar to water


aque·​ous | \ˈā-kwē-əs, ˈa-\

Kids Definition of aqueous

: made of, by, or with water an aqueous solution


aque·​ous | \ˈā-kwē-əs, ˈak-wē- \

Medical Definition of aqueous 

(Entry 1 of 2)

1a : of, relating to, or resembling water an aqueous vapor

b : made from, with, or by water an aqueous solution

2 : of or relating to the aqueous humor



Medical Definition of aqueous (Entry 2 of 2)

Keep scrolling for more

More from Merriam-Webster on aqueous

Spanish Central: Translation of aqueous

Nglish: Translation of aqueous for Spanish Speakers

Britannica English: Translation of aqueous for Arabic Speakers

Comments on aqueous

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


a soft lustrous wool fabric with mohair

Get Word of the Day daily email!

Test Your Vocabulary

Late Autumn 2018 Words of the Day Quiz

  • frosted-autumn-leaves
  • Which is a synonym of yahoo?
Name That Thing

Test your visual vocabulary with our 10-question challenge!


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


Love words? Need even more definitions?

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