Confined to a fresh- water lake by reason of waterfalls or dams; said of fishes that would naturally seek the sea, after spawning; as, the landlocked salmon
A landlocked country is surrounded by other countries and does not have its own ports. the landlocked West African nation of Mali. a landlocked country, state etc is surrounded by other countries, states etc and has no coast
(1) Enclosed or nearly enclosed by land, as a landlocked country without access to the sea or ocean (2) Confined to fresh water by some barrier, as salmon