(rail, US) A railroad gradient where helper locomotives are required to assist the train locomotives.
(rail, US) A railroad gradient where helper locomotives are required to assist the train locomotives.
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That which helps; anything serving to assist.
One who helps; an aide; assistant; auxiliary.
(rail, US) A metal bar attached to the side of locomotives and railroad cars for use as a handhold.
(rail, US) a diesel locomotive that combines the duties of a switcher with those of a locomotive hauling trains from one place to another.
Helping; lending aid or support; auxiliary.