aqueous

adjective

aque·​ous ˈā-kwē-əs How to pronounce aqueous (audio) ˈa- How to pronounce aqueous (audio)
1
a
: 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

Example Sentences

Recent Examples on the Web At the sites’ hangars and runways, aqueous firefighting foam, or AFFF, used to extinguish fuel fires, has been hosed into nearby washes, or diluted and dumped into the sewer. The Arizona Republic, 4 Jan. 2023 Vinegar is an aqueous solution that contains acetic acid and water. Anthony Martin, Discover Magazine, 5 Aug. 2014 The aqueous planets are 218 light-years away in the constellation Lyra, says NASA. Zoe Sottile, CNN, 17 Dec. 2022 This aqueous environment made Camp Lejeune an ideal training center for the Marine Corps. Jamie Ducharme, Time, 16 Nov. 2022 So does the show’s title painting, which is dominated by an aqueous blue wave that breaks on a tan expanse that can be seen as a beach. Mark Jenkins, Washington Post, 6 Oct. 2022 These traces often come in the form of deposits of aqueous minerals. Joshua Hawkins, BGR, 24 Aug. 2022 Fire hazards are problematic with the non-aqueous electrolytes in lithium batteries; add sodium's reactivity with the environment, and the hazards are severe. John Timmer, Ars Technica, 6 July 2022 Water takes myriad forms, and so do Julio Valdez’s paintings and prints of aqueous surfaces and depths. Mark Jenkins, Washington Post, 24 June 2022 See More

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.

Word History

Etymology

Medieval Latin aqueus, from Latin aqua

First Known Use

1646, in the meaning defined at sense 1a

Time Traveler
The first known use of aqueous was in 1646

Dictionary Entries Near aqueous

Cite this Entry

“Aqueous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aqueous. Accessed 4 Feb. 2023.

Kids Definition

aqueous

adjective
1
a
: of, relating to, or resembling water
b
: made from, by, or with water
an aqueous solution
2
: of or relating to the aqueous humor

Medical Definition

aqueous

1 of 2 adjective
1
a
: 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

aqueous

2 of 2 noun
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!


Fashionable Words

  • dog-sunglasses-scarf
  • Which of these items is named for a deadly weapon?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?

PLAY