a·quat·ic (ə-kwătĭk, ə-kwŏt-)
1. Consisting of, relating to, or being in water: an aquatic environment.
2. Living solely or chiefly in or on the water: aquatic animals and plants.
3. Taking place in or on the water: an aquatic sport.
1. An organism that lives solely or chiefly in or on the water.
2. aquatics Sports Athletic activities performed in or on the water.
[Middle English aquatique, from Old French, from Latin aquāticus, from aqua, water; see akw-ā- in the Appendix of Indo-European roots.]
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Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.