a measure of radiation based on the ability to produce ionization: expressed in roentgens.
noun, Photography. 1. a figure indicating the proper exposure for a film of a certain speed in a certain light.
- Exposure keratitis
exposure keratitis ex·po·sure keratitis (ĭk-spō’zhər) n. See lagophthalmic keratitis.
noun, Photography. 1. an instrument for measuring the intensity of light in a certain place or upon a certain object, having an adjustable scale for determining the optimum relations of shutter speeds and stops at each intensity. noun 1. (photog) an instrument for measuring the intensity of light, usually by means of a photocell, so […]
[ik-spound] /ɪkˈspaʊnd/ verb (used with object) 1. to set forth or state in detail: to expound theories. 2. to explain; interpret. verb (used without object) 3. to make a detailed statement (often followed by on). /ɪkˈspaʊnd/ verb 1. when intr, foll by on or about. to explain or set forth (an argument, theory, etc) in […]