the GNU version of the Collaborative International Dictionary of English
adj. Being under water, or beneath the surface of water; adapted for use under water; submarine.
adj. Formed in or under water.
The Century Dictionary and Cyclopedia
Not entirely aquatic, as a wading bird.
[= French subaquatique.] Situated or formed in or below the surface of the water; subaqueous.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. growing or remaining under water
adj. partially aquatic; living or growing partly on land and partly in water
Word Usage
"The most outr é entry of all, however, is the one on things " subaquatic, " which includes a delirious description of Salvador Dal í ' s deranged installation at the New York World ' s Fair in 1939."