Geology. (of a rock) having a texture formed by the intergrowth of certain minerals so as to resemble written characters.
8.
Mathematics. pertaining to the determination of values, solution of problems, etc., by direct measurement on diagrams instead of by ordinary calculations.
Origin: 1630–40; < Latin graphicus of painting or drawing < Greek graphikós able to draw or paint, equivalent to gráph(ein) to draw, write + -ikos-ic; cognate with carve