Ice cream is called "ice cream" in the UK just like it is called in the United States.
Although the UK also has other frozen treats that are called "ice lollies" which are similar to popsicles and "choc ices" which is ice cream coated in chocolate.
The name and term "ice cream" itself refers to the creamy frozen dessert.
Ice cream is the standard term for the creamy, frozen dessert just like it is known in America and many other places.
Ice Lollies are frozen fruit juice treats that are often on a stick.
And Chock Ices are rectangular blocks of ice cream, usually vanilla, coated in chocolate.
And soft serve is sometimes referred to as "whip" or "Mr. Whippy" when it's some from an ice cream van.