a heavy metal platform or frame to which an engine or machine is attached
bedplate in American English
(ˈbɛdˌpleɪt)
noun
a plate forming the base, as of a machine
bedplate in American English
(ˈbedˌpleit)
noun
a plate, platform, or frame supporting the lighter parts of a machine
Also called: baseplate
Word origin
[1840–50; bed + plate1]This word is first recorded in the period 1840–50. Other words that entered Englishat around the same time include: bypass, flan, layout, plaque, pylon