one of a pair of plates that fit together and support the body of a car on a truck, while allowing the truck to rotate with respect to the body. One plate (body center plate ) is attached to the underside of the car body and the other (truck center plate ) is part of the car truck.
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How to use center plate in a sentence
From this pattern, reproduced in iron for the sake of permanence, is cast the flat center plate you see.
Below shield, bottom center (center plate):Honor Virtutis Premium.John Baptist Jackson | Jacob Kainen