windowsill

1. (architecture) The horizontal member protruding from the base of a window frame.Examples: "An upscale version of this tried and true method of providing windowsill humidity is the use of plastic 'egg crating' instead of gravel."; "You could tell summer was coming because people were drinking on the street, searching for spaces on the windowsills of the pub to balance their beerglasses."; "north-facing rooms: These rooms receive the least light if you live up north, so choose plants that can endure low-light conditions and keep them directly on the windowsill. Some suggestions include pothos, philodendrons, arrowheads, Chinese evergreens, peace lilies and zamioculcas (or “ZZ”)."