underplate

== English == === Etymology === From under- +‎ plate. === Pronunciation === === Noun === underplate (plural underplates) An armoured plate that forms part of a mortice lock. (geology) A tectonic plate that forms or moves under another. (kitchenware) A charger plate === Verb === underplate (third-person singular simple present underplates, present participle underplating, simple past and past participle underplated) (geology) To act as an underplate.