transom; ranma
A decorative wooden panel or lattice installed above a door or between rooms in traditional Japanese architecture, allowing light and air to pass through.
This ryokan room has a ranma with beautiful carvings.
Standard kanji spelling for the architectural term.
Compound of 欄 (ran, 'column' or 'railing') and 間 (ma, 'space' or 'interval'), referring to the space between pillars or above a door where the transom is placed.