(n.) The
state or quality of being intense; intenseness; extreme degree; as,
intensity of heat, cold, mental application, passion, etc.
(n.) The amount or degree of energy with which a force operates or a cause acts; effectiveness, as estimated by results produced.
(n.) The magnitude of a distributed force, as pressure, stress, weight, etc., per unit of surface, or of volume, as the case
may be; as, the
measure of the
intensity of a total stress of forty pounds which is distributed uniformly over a surface of
four square inches area is ten pounds per square inch.
(n.) The degree or depth of shade in a picture.