护理专业英语通常称为"nursing"，来源于英语单词"nurse"，意思是"护士"。例句：

She is studying nursing at the university.（她正在大学学习护理专业。）

Nursing is a challenging but rewarding profession.（护理是一个充满挑战但也有回报的职业。）

She has been a nurse for over 20 years.（她已经当护士20多年了。）

总之，护理专业英语是"nursing"，来源于英语单词"nurse"，指的是护士这个职业。