- The definition of a soleplate is a metal plate at the bottom of an iron.
The metal plate that presses down against your clothing when you use a clothes iron to press your clothes is an example of a soleplate.
soleplate definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
the ironing surface of a flatiron
Origin: sole plush plate
soleplate definition by American Heritage Dictionary
The underside of a clothes iron.