Relating to, containing, or composed of water; watery in nature.
From Latin 'aquosus' (watery), derived from 'aqua' (water). The term has been used in English since at least the 16th century in scientific and descriptive contexts.
Your eye has an 'aqueous humor'—a clear watery fluid that maintains eye pressure and keeps your eyeball perfectly round so you can see clearly, proving that 'aqueous' isn't just academic vocabulary but describes essential parts of your body right now.
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