- to lessen the sensitiveness of.
- to make indifferent, unaware, or the like, in feeling.
- to make less sensitive or wholly insensitive to light, as the emulsion on a film.
- to treat (the design on a lithographic plate) with an etch in order to increase the capacity to retain moisture, and to remove traces of grease.
- to reduce the sensitivity of (an explosive) to those stimuli capable of detonating it.
- to render insensitive or less sensitive
- to decrease the abnormal fear in (a person) of a situation or object, by exposing him to it either in reality or in his imagination
