Engineering and Mechanics. A metal plate with dogs for holding something in place; (in a lathe) a circular plate with radial slots into which the arm of a lathe dog will fit.
Origin
Late 17th century (in an earlier sense). From dog + plate.
Definition of dog plate in US English:
dog plate
nounˈdɒɡ ˌpleɪt
Engineering and Mechanics. A metal plate with dogs for holding something in place; (in a lathe) a circular plate with radial slots into which the arm of a lathe dog will fit.
Origin
Late 17th century (in an earlier sense). From dog + plate.