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.
Definition of summation. 1  1 : the act or process of forming a sum : addition. 2  2 : sum, total. 3  3 : cumulative action or effect; especially : the process by which a sequence of stimuli that are individually inadequate to produce a response are cumulatively able to induce a nerve impulse.