Definition of rub rail
: a metal rail to protect against rubbing: such as
a
: a projecting steel or aluminum strip that protects a truck or bus body against damage by gliding contact
b
: a brass rail on a boat to take wear of the lines
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“Rub rail.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rub%20rail. Accessed 11 May. 2021.
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The first known use of rub rail was in 1939
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