(architecture) A horizontal board, usually made of wood, on a windowsill, fitted against the bottom rail of the lower sash.

plural of lattice window

(architecture) A large semicircular window, characteristic of the enormous public baths (thermae) of Ancient Rome.

plural of Diocletian window

A statistical measure that quantifies the robustness of a thermal process.

(Internet) A problem in data transmission, where a server, unable to process all incoming data, repeatedly asks the clients to reduce the size of the packets they are sending — to the point where all packets become extremely small ("tinygrams") and transmission becomes inefficient.

(criminology) A criminological theory stating that signs of urban decay (e.g. broken windows, graffiti) signal that an area is not monitored, encouraging more destructive criminal behavior.

(architecture) A peculiar form of window common in mediaeval churches, and of uncertain use. Windows of this sort are narrow, near the ground, and out of the line of the windows, and in many different situations in the building.

The geographic region between 10 degrees north and 40 degrees north latitude, especially when considered as a target for Christian missionary work.

You can tell a lot about a person from their eyes.