Negligible a. : That may neglicted, disregarded, or left out of consideration.

Example:
What is the net force exerted on the car? (Assume friction to be Negligible.) ?

Taxonomy
car, voltage source, requirements, free encyclopedia, physics, air resistance, electronic engineering, circuit element, assumptions, disciplines, quantities, free dictionary, neglect, software engineering, Interaction, friction, specification, risk assessment.

Defination from the web:
... negligible in Wiktionary, the free dictionary. In engineering, mathematics, physics and similar disciplines, the term negligible refers ... A quantity can be said to be negligible when it is safe to ignore (neglect) it in the present case, within the margins for error that have been ...