'mail car' definitions:

Definition of 'mail car'

(from WordNet)

noun

A railway car in which mail is transported and sorted

Definition of 'mail car'

From: GCIDE

mail car \mail car\ n. A railway car of special design used for the transportation and sorting of mail en route to its destination, and having employees of the post office inside to perform those functions. [WordNet 1.5 +PJC]

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