one-piece swimsuit
US /ˈwʌn.piːs ˈswɪm.suːt/
UK /ˈwʌn.piːs ˈswɪm.suːt/

1.
costume da bagno intero, costume intero
a type of swimwear for women that covers the torso, as opposed to a two-piece bikini
:
•
She wore a stylish one-piece swimsuit to the beach.
Indossava un elegante costume da bagno intero in spiaggia.
•
Many competitive swimmers prefer a one-piece swimsuit for better hydrodynamics.
Molti nuotatori agonistici preferiscono un costume da bagno intero per una migliore idrodinamica.