Pris·mat·ic Pris·mat·ic·al a.
1. Resembling, or pertaining to, a prism; as, a prismatic form or cleavage.
2. Separated or distributed by a prism; formed by a prism; as, prismatic colors.
3. Crystallog. Same as Orthorhombic.
Prismatic borax Chem., borax crystallized in the form of oblique prisms, with ten molecules of water; -- distinguished from octahedral borax.
Prismatic colors Opt., the seven colors into which light is resolved when passed through a prism; primary colors. See Primary colors, under Color.
Prismatic compass Surv., a compass having a prism for viewing a distant object and the compass card at the same time.
Prismatic spectrum Opt., the spectrum produced by the passage of light through a prism.
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