aqueous

adjective

aque·​ous ˈā-kwē-əs  ˈa- 

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

Examples of aqueous in a Sentence

Recent Examples on the Web

Re-entering, Marsalis starts out playing gentle, aqueous phrases, then steadily crescendoes to a piercing intensity for the final theme statement, the band swelling to match him as his tone grows ever more urgent. —Hank Shteamer, New York Times, 25 Mar. 2025

Rosemary water, obtained from the mixture of rosemary leaf extract and rosemary oil in an aqueous solution, also has a high vitamin profile that is active in counteracting skin-level imbalances, free radicals, and loss of tissue elasticity, which are revitalized with each use. —Alice Nardiotti, Vogue, 3 Mar. 2025

After many iterations, the target rare earths are then typically transferred back to the aqueous phase. —IEEE Spectrum, 27 Dec. 2024

What to Know Fort Worth officials allege that the use of aqueous film-forming foam, which contained PFAS, contaminated Fort Worth's drinking water sources. —Mark Davis, Newsweek, 14 Mar. 2025

Word History

Etymology

Medieval Latin aqueus, from Latin aqua

First Known Use

1646, in the meaning defined at sense 1a

Phrases Containing aqueous

• aqueous humor

Rhymes for aqueous

• nonaqueous
• subaqueous

Kids Definition

aqueous

adjective

aque·​ous ˈā-kwē-əs  ˈak-wē- 

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

aque·​ous ˈā-kwē-əs  ˈak-wē- 

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

: aqueous humor