uncurl
🇺🇸
/ˌʌnˈkɜːrl/
🇬🇧
/ˌʌnˈkɜːl/
To straighten out or cause to straighten out from a curled or coiled state.
The cat uncurled its tail as it stretched out in the sun.
猫は太陽の下で伸びるとき、そのしっぽをゆるめていた。