Trān'som, n.

n. [Written also transsummer and transumpt, from Lat. trans, across, and sumere, sumptum, to take. Cf. Lat. transenna, a rope, noose, springe, L. Lat., a lattice, window.]

1. (Arch.) (a.) An horizontal mullion or cross-bar in a window. (b.) A lintel over a door.
2. (Naut.) A beam or timber extended across the stern-post of a ship, to strengthen the aft part and give it due form.
3. (Gun.) The piece of wood or iron connecting the cheeks of some gun-carriages.
4. (Surv.) The vane of a cross-staff. Chambers. Transom-knees (Ship-building), knees bolted to the transoms and after timbers. — Transom-window (Arch.), a window divided into two parts by a transom.