i·so·pleth (ī sə-plĕth ′)
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n. 1. An isoline. 2. An isoline derived by interpolation between points that represent the aggregated values of a variable within different predefined areas.
[German Isoplethe, from Greek īsoplēthēs, equal in number or quantity : īso-, iso- + plēthos, number, quantity (from plēthein, to be full; see pelə-1 in the Appendix of Indo-European roots).] |