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entablature of a Doric order building
A. triglyph
B. metope


adj. Architecture
An ornament in a Doric frieze, consisting of a projecting block having on its face two parallel vertical glyphs or grooves and two half grooves or chamfers on either vertical end, that separates the metopes.

[Latin trīglyphus, from Greek trigluphos : tri-, three; see trei- in Indo-European roots + gluphē, carving; see glyph.]

tri·glyph′ic adj.