Complex sentence: Dehumanization or dehumanisation describes the denial of "humanness" to others and is theorized to take on two forms: animalistic dehumanization, which is employed on a largely intergroup basis, and mechanistic dehumanization, which is employed on a largely interpersonal basis.
Split into simpler sentences: Dehumanization or dehumanisation describes the denial of "humanness" to other people. It is theorized to take on two forms: animalistic dehumanization, which is employed on a largely intergroup basis, and mechanistic dehumanization, which is employed on a largely interpersonal basis.