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

Some people have evaporative dry eye (where the tears don’t stay on the eye long enough), while others have aqueous deficiency (where not enough tears are produced at all). —Julie Loffredi, Forbes.com, 11 June 2025

Fans still celebrate him as the punchline-dropping weed head with aqueous cadences who reshaped Aughts hip-hop in his image while personifying Dirty South lyricism at its finest. —Mosi Reeves, Rolling Stone, 9 June 2025

In much the same way that silk cocoons unravel, silk unravels, too, when rid of its sericin and transformed into an aqueous solution of pure fibroin fiber. —Amy Paturel, Discover Magazine, 22 Apr. 2025

But the military, like industry, already had some indication of aqueous film-forming foam’s (AFFF) toxic effects decades before such information became public knowledge. —Rachel Frazin, The Hill, 10 Apr. 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