one that speeds: such as
any of various devices (such as an attachment to a governor) for regulating the speed of a machine or part
or less commonly speed frame : a machine for drawing and twisting slivers to form rovings
a small light usually gasoline-operated vehicle with flanged wheels or solid rubber tires for operation on railroad tracks
one who drives too fast or who exceeds the legal speed limit
a person who drives faster than the legal speed limit