Neutral a. : Not engaged on either side; not taking part with or assisting either of two or more contending parties; neuter; indifferent.

Neutral a. : Neither good nor bad; of medium quality; middling; not decided or pronounced.

Neutral a. : Neuter. See Neuter, a., 3.

Neutral a. : Having neither acid nor basic properties; unable to turn red litmus blue or blue litmus red; -- said of certain salts or other compounds. Contrasted with acid, and alkaline.

Neutral n. : A person or a nation that takes no part in a contest between others; one who is neutral.

Example:
What is required and how much to replace Neutral wire from weather head to electrical panel?

Taxonomy
Neutral, free encyclopedia, stance, Neutral point of view, Neutrality, element, organisms, juridical, sovereign state, identity element, last element, search, free dictionary, NPOV, Natural science, mathematics, respect to, binary operation.

Defination from the web:
Neutral element or identity element (mathematics), a special type of element of a set with respect to a binary operation on that set, such if ... Neutral point of view "NPOV" (journalism), a stance or tone that is free from bias, see Objectivity (journalism) ...