NP: Nurse Practitioner Nurse practitioners are healthcare professionals that complete advanced, graduate level educational programs that enable them to practice independently or in collaboration with other health care professionals and other individuals to diagnose, treat and manage the patient's health problems.
sum. n. 1. Mathematics. a. An amount obtained as a result of adding numbers. b. An arithmetic problem: a child good at sums. 2. The whole amount, quantity, or number; an aggregate: the sum of the team's combined experience. 3.
Sum, or summation, is just addition. For example, the sum of 1 and 2 is 1 + 2 = 3. The term sum is generally used for large sets or series. For example, the sum of the first 100 natural numbers is 1 + 2 + 3 + ... + 100 = 495.