aquat·ic /əˈkwɑtɪk, ˈkwæ-/
  水生動物,水草(a.)水生的,水中的,水上的
  aquat·ic /əˈkwɑtɪk, ˈkwæt-/ 形容詞
  水的,水生的,水棲的
  A·quat·ic a.  Pertaining to water; growing in water; living in, swimming in, or frequenting the margins of waters; as, aquatic plants and fowls.
  A·quat·ic, n.
  1. An aquatic animal or plant.
  2. pl. Sports or exercises practiced in or on the water.
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  aquatic
       adj 1: relating to or consisting of or being in water; "an aquatic
              environment"
       2: operating or living or growing in water; "boats are aquatic
          vehicles"; "water lilies are aquatic plants"; "fish are
          aquatic animals" [ant: terrestrial, amphibious]
       n : a plant that lives in or on water