Definition of aqueous in English:

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Pronunciation: /ˈākwēəs/
Pronunciation: /ˈakwēəs/


1Of or containing water, typically as a solvent or medium: an aqueous solution of potassium permanganate
More example sentences
  • It consists of isopropyl alcohol in aqueous solution at two different dilutions.
  • In this process the ether is shaken with an organic solute in aqueous solution.
  • This is carried out using an aqueous solution of hydrogen iodide reacting in the presence of red phosphorus.
1.1Like water; watery: a great hall of aqueous marble
More example sentences
  • After two dogged weeks I've finally given up, switching to much lighter aqueous cream instead.
  • The effect is to dissolve his body in an aqueous medium of time and light.
  • Although the invention has been more particularly described with reference to cakes or sticks, it goes without saying that it is also applicable to any other solid form employed in cosmetics, such as for example, pencils having an aqueous appearance.


Mid 17th century: from medieval Latin aqueus, from Latin aqua 'water'.

For editors and proofreaders

Syllabification: a·que·ous

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