(of a quantity) less than zero; to be subtracted from others or from zero.

of, containing, producing, or denoting the kind of electric charge carried by electrons.

(of a photographic image) showing light and shade or colors reversed from those of the original.

relating to or denoting any of the earth or water signs, considered passive in nature.

a photographic image made on film or specially prepared glass that shows the light and shade or color values reversed from the original, and from which positive prints can be made:

a result of a test or experiment indicating that a certain substance is not present or a certain condition does not exist:

the part of an electric circuit that is at a lower electrical potential than another part designated as having zero electrical potential.

a number less than zero.