I0253900 (ī′sə-līn′)n. A line on a map, chart, or graph connecting points of equal value. Also called isogram.
isoline
(ˈaɪsəʊˌlaɪn) n (Physical Geography) another term for isopleth
isoline
isoline
A line on a chart showing an equal value of a variable quantity. Weather maps have isobars, isotherm, isoshear, and isotach as isolines on them. See isobars.MedicalSeeisoplethThesaurusSeecontour line