名詞 fishplate:

1. metal plate bolted along sides of two rails or beams

fish.plate

n.（名詞）
A metal or wooden plate bolted to the sides of two abutting rails or beams, used especially in the laying of railroad track.
接合板，魚尾板：尤指用在鐵路枕木上的釘在兩個毗連的欄桿或梁木上的金屬板或木板

來源：
Probably from French fiche [peg] from Old French * see microfiche
可能源自 法語 fiche [栓，釘] 源自 古法語 *參見 microfiche
plate
plate