Process for reproducing permanent images on light-sensitive materials by various forms of radiant energy, including visible light, ultraviolet, infrared, X-rays, atomic radiations, and electron beams.
From Encyclopedia of International Media and Communications Press freedom in Africa is a complex, checkered, nonlinear affair. It was mostly nonexistent during the colonial period in most of the linguistic regions of the continent. It evolved from colonial subjugation, to tight government control during the period of the one-party state and apartheid, to the relative freedom of the present.
From The Hutchinson Unabridged Encyclopedia with Atlas and Weather Guide