(adj) operating or living or growing in water, Ant. terrestrial, amphibious, Example:boats are aquatic vehicles; water lilies are aquatic plants; fish are aquatic animals
(n) a plant that grows partly or wholly in water whether rooted in the mud, as a lotus, or floating without anchorage, as the water hyacinth, Syn. hydrophytic plant, water plant, hydrophyte
a. [ L. aquaticus: cf. F. aquatique. See Aqua. ] Pertaining to water; growing in water; living in, swimming in, or frequenting the margins of waters; as, aquatic plants and fowls. [ 1913 Webster ]