aquatic
Concise Oxford English Dictionary © 2008 Oxford University Press:
aquatic /əˈkwatɪk, -ˈkwɒt-/
▶adjective relating to water.
■ living in or near water.
▶noun an aquatic plant or animal.– origin C15 (in the sense ‘watery, rainy’): from OFr. aquatique or L. aquaticus, from aqua ‘water’.
'aquatic' also found in these Oxford entries:
aerenchyma
- alderfly
- amphibian
- amphiuma
- aquaculture
- -atic
- axolotl
- bivalve
- bladderwort
- bloodworm
- branchiopod
- bryozoan
- bur-reed
- caddis
- caddis worm
- cnidarian
- coelenterate
- coot
- copepod
- crowfoot
- crustacean
- ctenophore
- dinoflagellate
- dobsonfly
- dragonfly
- duckweed
- eelgrass
- electroreception
- filter-feeding
- fin
- hellbender
- hellgrammite
- holdfast
- hornwort
- isopod
- leviathan
- louse
- macrophyte
- mesosaur
- milfoil
- moorhen
- mosquito
- moss animal
- naiad
- nekton
- nerite
- nostoc
- ostracod
- oxygenator

