isohaline

[ ahy-suh-hey-leen, -lahyn, -hal-een, -ahyn ]
/ ˌaɪ səˈheɪ lin, -laɪn, -ˈhæl in, -aɪn /

noun

a line on a map of the ocean connecting all points of equal salinity.
Also i·so·hal·sine [ahy-suh-hal-seen, -sahyn] /ˌaɪ səˈhæl sin, -saɪn/.

Origin of isohaline

1900–05; iso- + -haline < Greek hálinos salty; see hal-, -ine1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019