holographic

a. [ Homo- + Gr. "o`los whole + -graph + -ic; but cf. F. homalographique, Gr. &unr_; even, level.] Preserving the mutual relations of parts, especially as to size and form; maintaining relative proportion. [1913 Webster]

Homolographic projection, a method of constructing geographical charts or maps, so that the surfaces, as delineated on a plane, have the same relative size as the real surfaces; that is, so that the relative actual areas of the different countries are accurately represented by the corresponding portions of the map. [1913 Webster]