01 n. A horizontal crossbar in a window, over a door, or between a door and a window above it. Transom is the horizontal, as mullion is the verti…
-
1.
A horizontal crossbar in a window, over a door, or between a door and a window above it. Transom is the horizontal, as mullion is the vertical, bar across an opening. See Illust. of Mullion.(Arch.) See: Mullion
-
2.
One of the principal transverse timbers of the stern, bolted to the sternpost and giving shape to the stern structure; -- called also transsummer.(Naut.) Also: transsummer
-
3.
The piece of wood or iron connecting the cheeks of some gun carriages.(Gun.)
-
4.
The vane of a cross-staff.(Surg.)
-
5.
One of the crossbeams connecting the side frames of a truck with each other.(Railroad)
Phrases & compounds
Transom knees —
knees bolted to the transoms and after timbers.
Transom window —
A window divided horizontally by a transom or transoms.