[f. STEREO- + -GRAM.]
1. A diagram representing a solid object on a plane; esp. a drawing in which the inequalities or curvature of a surface is indicated by contour lines or shading.
1868. J. C. Maxwell, Sci. Papers (1890), II. 101. The Construction of Stereograms of Surfaces.
1877. Catal. Spec. Collect. Sci. Apparatus S. Kens. Mus. (ed. 3), 40. Stereograms of the Lines of Curvature of Surfaces.
2. A stereoscopic picture: = next 1. Also fig.
1866. J. Shanks, Elgin & Cathedr., 103. Shakespeares plays stand out by themselves, from all others, beyond all comparison, a stupendous intellectual stereogram.
1872. Proctor, Ess. Astron., iv. 60. He had exhibited some beautiful stereograms of this globe [sc. Mars].