siderod means A coupling rod on each side of a locomotive. Lexicurio rates it Sui generis — a strength score of 100 out of 100.
Etymology
From side + rod.
noun
- A coupling rod on each side of a locomotive.“I recall in particular the amazing speed of the siderods of our elegant little Caledonian 4-6-0 and the vivid contrast between its polished blue livery and the red-funnelled mail steamers and white-hulled yachts crowding Oban Bay; […].”