noun
big bend; sharp curve
Refers to a large or sharp bend, especially in a road or path.
この先に大曲がりがあるから、スピードを落としてください。
There's a sharp curve ahead, so please slow down.
山道の大曲がりで見通しが悪い。
Visibility is poor at the big bend on the mountain road.
カーブ is a general loanword for a curve or bend, while 大曲がり specifically emphasizes a large or sharp bend.
曲がり角 refers to a street corner or turning point, whereas 大曲がり describes the shape of the bend itself.
Compound of 大 (おお, 'big') and 曲がり (まがり, 'bend'), the nominalized form of 曲がる (まがる, 'to bend').