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transom

[tran-suh m] /ˈtræn səm/
noun
1.
a crosspiece separating a door or the like from a window or fanlight above it.
2.
Also called transom light, transom window. a window above such a crosspiece.
3.
a crossbar of wood or stone, dividing a window horizontally.
4.
a window so divided.
5.
Nautical.
  1. a flat termination to a stern, above the water line.
  2. framework running athwartships in way of the sternpost of a steel or iron vessel, used as a support for the frames of the counter.
6.
Artillery. a metal piece connecting the sidepieces of the tail or the cheeks of a gun carriage.
Origin
late Middle English
1325-1375
1325-75; late Middle English traunsum, traunsom, Middle English transyn, probably alteration (by association with trans-) of traversayn < Old French traversin crosspiece, derivative of travers breadth; see traverse
Related forms
transomed, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for transom
  • No, it doesn't prove that, because sequences can come in over the transom through the trans-genic route.
  • The rectangular transom above the door to the street shone a dazzling white light.
  • Meanwhile, a few things have come across the transom.
  • Awesome family room with transom windows leading to an oversized deck.
  • Pilasters flank the deeply recessed door with leaded transom.
  • Field attach transom panels to reinforcing channels with screws.
  • The door is framed with a paneled soffit and jamb, flaking sidelights of three lights over panels, and an eight-light transom.
  • Stay away from the transom while the vessel is idling or underway.
  • No riding on the bow, gunwale or transom of any vessel.
  • Full transom means a transom with a maximum width which exceeds one- half the maximum beam of the boat.
British Dictionary definitions for transom

transom

/ˈtrænsəm/
noun
1.
Also called traverse. a horizontal member across a window Compare mullion
2.
a horizontal member that separates a door from a window over it
3.
the usual US name for fanlight
4.
(nautical)
  1. a surface forming the stern of a vessel, either vertical or canted either forwards (reverse transom) or aft at the upper side
  2. any of several transverse beams used for strengthening the stern of a vessel
Derived Forms
transomed, adjective
Word Origin
C14: earlier traversayn, from Old French traversin, from traverse
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for transom
transom
1388, transeyn "crossbeam spanning an opening, lintel," probably by dissimilation from L. transtrum "crossbeam" (especially one spanning an opening), from trans- "across" + instrumental suffix -trum. Meaning "small window over a door or other window" is first recorded 1844.
Online Etymology Dictionary, © 2010 Douglas Harper
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9
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