aq ‧ ua ‧ ma ‧ rine /ˌækwəməˈriːn◂ $ ˌæ-, ˌɑː-/ BrE AmE noun
[ Date: 1500-1600 ; Language: Latin ; Origin: aqua marina 'sea water' ]
1 . [uncountable and countable] a greenish blue jewel, or the type of stone it comes from
2 . [uncountable] a greenish blue colour
—aquamarine adjective