A type of drop leaf table which gets its name from the "gates" (a frame of legs and stretchers) which support the leaves when open. [ picture
A table with two drop leaves that are supported on swinging "gates," which pivot from the frame and stretchers (top and bottom) of the table.
These tables are ones constructed with a pair of tabletop extensions that store flat against the sides of the table when not in use. The side panels are mounted on hinges and will swing into place. The name comes from the commonly gate-like structure of the central supporting legs. The central frame must be very sturdy to keep its stability with the top extensions in place.