鍵かぎの手て

noun

intentionally curved road section; defensive bend in a road

Refers to a deliberate curve or zigzag in a road, historically designed to slow attackers or impede visibility. Often used in descriptions of castle approaches or old town layouts.

• 城じょう下か町まちには、敵てきの侵しん入にゅうを防ふせぐために鍵かぎの手てが設もうけられていた。

  In the castle town, intentionally curved road sections were built to prevent enemy intrusion.

• この道みちは鍵かぎの手てになっていて、先さきが見み通とおせない。

  This road bends sharply, so you can't see what's ahead.