Triglyph

Triglyph is an architectural term for the vertically channeled tablets of the Doric frieze, so called because of the angular channels in them, two perfect and one divided, the two chamfered angles or hemiglyphs being reckoned as one. The rectangular recessed spaces between the triglyphs on a Doric frieze are called metopes. The raised spaces between the channels themselves (within a triglyph) are called femur in Latin or meros in Greek.