What does "transom" mean?

Transom: (Naut.) One of the principal transverse timbers of the stern, bolted to the sternpost and giving shape to the stern structure; -- called also transsummer.

Additional senses

  1. 2.(Gun.) The piece of wood or iron connecting the cheeks of some gun carriages.
  2. 3.(Surg.) The vane of a cross-staff. Chambers.
  3. 4.(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.

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