the foundation plate of heavy machinery, as of the steam engine; the bed plate.
See also: Base
base plate
base plate
[′bās ‚plāt] (design engineering) The part of a theodolite which carries the lower ends of the three foot screws and attaches the theodolite to the tripod for surveying. (engineering) A metal plate that provides support or a foundation.MedicalSeebaseplateAcronymsSeeBP