1) Having the same density 
Synonym for isopycnic ... <physics> Having equal density, as different regions of a medium. ... A line or surface passing through those points in a medium, at which the density is the same as, an isopycnic line or surface. ... Origin: Iso- + Gr. Pyknos dense. ... (08 Mar 2000) ... 
Type: Term Pronunciation: ī′sō-pik′nik Definitions: 1. Having the same density.