Leukocyte extravasation is a biological process in which white blood cells move from the bloodstream to the infected or damaged tissues to fight infections and inflammation. There are many synonyms for leukocyte extravasation, including leukocyte migration, immune cell infiltration, leukocyte diapedesis, and immune cell extravasation. All of these terms describe the movement of white blood cells from the blood vessels to the affected tissue, and are commonly used in medical research and terminology. Understanding the different synonyms for leukocyte extravasation can help researchers and medical professionals communicate more effectively about this essential biological process.