n.桨架

oarlock桨架
oar,桨，lock,锁住。比喻用法。

oarlock block → 桨叉垫木；桨架加强材
horn oarlock → 马蹄形桨叉
north river oarlock → 同桨闰在一起的桨叉

1. The metal rod upon which the oarlock is mounted.
[汉]桨架脚:把桨固定住的金属楔.
——来自互联网

【Noun】

1. a holder attached to the gunwale of a boat that holds the oar in place and acts as a fulcrum for rowing