a·que·ous 
(ākwē-əs, ăkwē-)
(ākwē-əs, ăkwē-)adj.
1. Relating to, similar to, containing, or dissolved in water; watery.
2. Geology Formed from matter deposited by water, as certain sedimentary rocks.
[From Medieval Latin aqueus, from Latin aqua, water; see AQUA.]
- instrumentalism
- instrumentalist
- instrumentality
- instrumentally
- instrumentation
- instrument flying
- instrument landing
- instrument panel
- insubordinate
- insubordinately
- insubordination
- insubstantial
- insubstantiality
- insufferable
- insufferably
- insufficiency
- insufficient
- insufficiently
- insufflate
- insufflation
- insufflator
- insula
- insulant
- insular
- Insular Celtic