Dictionary.com

aqua

[ ak-wuh, ah-kwuh ]
/ ˈæk wə, ˈɑ kwə /
Save This Word!

noun, plural aq·uae [ak-wee, ah-kwee], /ˈæk wi, ˈɑ kwi/, aq·uas.
Chiefly Pharmacology.
  1. water.
  2. a liquid.
  3. a solution, especially in water.
a light greenish-blue color.
adjective
having the color aqua.
QUIZ
GOOSES. GEESES. I WANT THIS QUIZ ON PLURAL NOUNS!
Test how much you really know about regular and irregular plural nouns with this quiz.
Question 1 of 9
Which of the following nouns has an irregular plural form?

Origin of aqua

1350–1400; Middle English <Latin: water

Other definitions for aqua (2 of 2)

aqua-

variant of aqui-.

Origin of aqua-

Probably originally attributive use of aqua, or generalized from words in which it is etymologically the head noun of a phrase, as aquamarine, aquatint
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use aqua in a sentence

British Dictionary definitions for aqua

aqua
/ (ˈækwə) /

noun plural aquae (ˈækwiː) or aquas
water: used in compound names of certain liquid substances (as in aqua regia) or solutions of substances in water (as in aqua ammoniae), esp in the names of pharmacological solutions
adjective

Word Origin for aqua

Latin: water
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
FEEDBACK