Definify.com
Webster 1913 Edition
Transom
1.
(Arch.)
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
. 2.
(Naut.)
One of the principal transverse timbers of the stern, bolted to the sternpost and giving shape to the stern structure; – called also
transsummer
. 3.
(Gun.)
The piece of wood or iron connecting the cheeks of some gun carriages.
4.
(Surg.)
The vane of a cross-staff.
Chambers.
5.
(Railroad)
One of the crossbeams connecting the side frames of a truck with each other.
Transom knees
(Shipbuilding)
, knees bolted to the transoms and after timbers.
– Transom window
. (Arch.)
(a)
A window divided horizontally by a transom or transoms.
(b)
A window over a door, with a transom between.
Webster 1828 Edition
Transom
TRAN'SOM
,Noun.
1.
A beam or timber extended across the stern-post of a ship, to strengthen the aft-part and give it due form.2.
In architecture, the piece that is framed across a double light window; or a lintel over a door; the vane of a cross-staff.