WordWeight : Weighing the Words

Pronunciation : Plus
Part of Speech : a.
Etymology : [L., more; akin to Gr. full. See Full, a., and cf. Pi?, Pleonasm.]
Definition : 1. (Math.)

Defn: More, required to be added; positive, as distinguished from negative; -- opposed to Ant: minus.

2. Hence, in a literary sense, additional; real; actual. Success goes invariably with a certain plus or positive power. Emerson. Plus sign (Math.), the sign (+) which denotes addition, or a positive quantity.
Source : Webster's Unabridged Dictionary, 1913