Hȳ'per-thȳr'i-on, n.
n. [Gr. ὑπερθύριον, from ὑπέρ, over, and θύρα, door; θύριον, a little door; Lat. hyperthyrum.] (Arch.) That part of the architrave which is over a door or window.
n. [Gr. ὑπερθύριον, from ὑπέρ, over, and θύρα, door; θύριον, a little door; Lat. hyperthyrum.] (Arch.) That part of the architrave which is over a door or window.