- 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. - One of the principal transverse timbers of the stern,
bolted to the sternpost and giving shape to the stern structure; --
called also transsummer. - The piece of wood or iron connecting the cheeks of some
gun carriages. - The vane of a cross-staff. - One of the crossbeams connecting the side frames of a
truck with each other.
Definition
[ n.]