brackish
Concise Oxford English Dictionary © 2008 Oxford University Press:
brackish/ˈbrakɪʃ/
▶adjective (of water) slightly salty, as in river estuaries.
■ living in or requiring brackish water.
– derivatives
brackishness noun.
brackishness noun.
– origin C16: from obs. brack ‘salty’, from Mid. Low Ger., MDu. brac.
'brackish' also found in these Oxford entries:

