根号用英语怎么说

In English, the square root is usually referred to as the "square root". It comes from the Latin term "radix quadrata", which means "square root". Here are some example sentences with the square root in English:

"The square root of 9 is 3" (根号9是3)
"The square root of 16 is 4" (根号16是4)
"We can use a calculator to find the square root of a number" (我们可以用计算器来求一个数的平方根)