hypersaline

adjective
hy·​per·​sa·​line | \ˌhī-pər-ˈsā-ˌlēn, -ˌlīn\
variants: or less commonly hyper-saline

Definition of hypersaline 

: highly saline … they dwell in one of the world's harshest habitats—shallow hypersaline lakes. Few creatures can tolerate the unusual environments of these saline deserts.— Stephen Jay Gould Sugar production is blamed for diverting freshwater flow through the Everglades and dumping excess nutrients. As a result, water flowing from the Everglades into Florida Bay and ultimately into the Keys, is hypersaline and prone to algal blooms.Rodale's Scuba Diving

Other Words from hypersaline

hypersalinity \ ˌhī-​pər-​sā-​ˈli-​nə-​tē , -​sə-​ \ or less commonly hyper-salinity noun
Fresh water flowing into the sea is trapped; with no outflow, the only way out is up. High evaporation rates in this hot, arid zone result in extreme hypersalinity. — Batsheva Sobelman

First Known Use of hypersaline

1937, in the meaning defined above

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The first known use of hypersaline was in 1937

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