Complex sentence: Carnism is a term used by psychologist Melanie Joy and others to describe the use of animals, particularly for meat, as a dominant ideology supported by a variety of defence mechanisms and mostly unchallenged assumptions.
Split into simpler sentences: Carnism is a term used by psychologist Melanie Joy and others to describe the ideology that supports the use of animals for food, including meat. The argument holds that carnism is a dominant ideology supported by a variety of defence mechanisms and mostly unchallenged assumptions.