hairpin turn

US /ˈher.pɪn ˌtɜːrn/
UK /ˈher.pɪn ˌtɜːrn/
"hairpin turn" picture
1.

tornante

a very sharp bend in a road, especially on a mountain, that doubles back on itself

:
The bus struggled to navigate the steep hairpin turn on the mountain road.
L'autobus faticava a percorrere il ripido tornante sulla strada di montagna.
Drivers must slow down significantly before a hairpin turn.
I conducenti devono rallentare significativamente prima di un tornante.