Technetium is a chemical element with an atomic number of 43, and it is commonly used in nuclear medicine. Apart from its chemical name, there are various synonyms used to refer to this element. One of its synonyms is Tc, which is commonly used in scientific literature to denote technetium. Another frequently used synonym is technicium, which is a spelling variation of the element's name. Additionally, some other synonyms for technetium include isotope Tc-99m, Tech, and atomic symbol Tc. Technetium plays a vital role in medical imaging procedures, and its various synonyms are used frequently in the medical industry and scientific research.