Definition: a specific type of gate-leg, drop-leaf table, characterized by two prominent wing-shaped braces which swing out to support the drop leaves; usually smaller and lighter than a conventional gate-leg table, it's also characterized by splayed legs, which add to the sense of movement created by the wings; the table top itself can be oval or square, sometimes with a drawer; legs are usually turned, connected with a plain or ringed box-stretcher, and rest on ball or bun feet or castors; thought to be American (probably from Connecticut) and developing around the turn of the 18th century, it's typical of William and Mary style furniture
See also gate-leg table
Example: Frequently made of maple, a plentiful wood in colonial New England, butterfly tables were often painted red, black or other colors.