[ ak-wuh, ah-kwuh ]
/ ˈæk wə, ˈɑ kwə /

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.


having the color aqua.

Origin of aqua

1350–1400; Middle English < Latin: water

Definition for aqua (2 of 2)


variant of aqui-.

Origin of aqua-

probably orig. attributive use of aqua, or generalized from words in which it is etymologically the head noun of a phrase, as aquamarine, aquatint Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for aqua

British Dictionary definitions for 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


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