What does MIG stand for in welding?

Could you please clarify what the abbreviation 'MIG' represents in the context of welding? As I understand, welding encompasses a variety of techniques and processes, and I'm curious to know if MIG refers to a specific type of welding method or equipment. Is it perhaps an acronym for a commonly used welding terminology? If so, could you elaborate on its significance and how it differs from other welding techniques? I'm particularly interested in its applications and the benefits it may offer over alternative welding methods. Thank you for your assistance in clarifying this question.