say it: uh-KWAH-tik
aquatic is an adjective and noun meaning "relating to or consisting of or being in water". It carries 3 recorded senses.
relating to or consisting of or being in water
“an aquatic environment”
operating or living or growing in water
“boats are aquatic vehicles”
“water lilies are aquatic plants”
“fish are aquatic animals”
a plant that lives in or on water
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for aquatic come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.