Stem-cell research is a term that refers to the scientific study of stem cells. Stem cells are special cells that have the ability to develop into many different types of cells in the body. They have the potential to treat a wide range of diseases and conditions, including cancer, Parkinson's disease, and spinal cord injuries. However, there are several synonyms for stem-cell research, including regenerative medicine, cell therapy, and tissue engineering. Each of these terms emphasizes a different aspect of stem-cell research, but all share the common goal of harnessing the power of stem cells to improve human health.