[syn: transom, traverse]
The Collaborative International Dictionary of English v.0.48:
Transom \Tran"som\, n. [Probably fr. L. transtrum a crossbeam,
transom, from trans across. Cf. Trestle.]
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
(b) A window over a door, with a transom between.
WordNet (r) 3.0 (2006):
n 1: a window above a door that is usually hinged to a
horizontal crosspiece over the door [syn: transom,
transom window, fanlight]
2: a horizontal crosspiece across a window or separating a door
from a window over it [syn: transom, traverse]
Moby Thesaurus II by Grady Ward, 1.0:
60 Moby Thesaurus words for "transom":
air duct, air hole, air passage, air shaft, air tube, airway, bay,
bay window, blowhole, bow window, breathing hole, casement,
casement window, cross bitt, crossarm, crossbar, crosspiece,
doubletree, fan window, fanlight, grille, lancet window, lantern,
lattice, light, louver, louver window, louverwork, naris, nostril,
oriel, pane, picture window, port, porthole, rose window, shaft,
singletree, skylight, spilehole, spiracle, swingletree, touchhole,
transept, transversal, transverse, traverse, vent, ventage,
venthole, ventiduct, ventilating shaft, ventilator, whippletree,
wicket, wind tunnel, window, window bay, window glass,