An ornament in a Doric frieze, consisting of a projecting block having on its face three parallel vertical glyphs (protruding vertical bars) and two half grooves or chamfers on either vertical end, with metopes on either side of all but the first and last on a side.(pr. TRI:-glif)Example: Triglyphs as they figure into a diagram of the Doric order, but not into a diagram of the Ionic order.Also see abacus, architrave, base, capital, classical orders, column, Corinthian, cornice, echinus, entablature, Greek art, Ionic, orders, Roman art, shaft, and stylobate.