The term "Uranyl Group" refers to a chemical group in which uranium is present in the form of a cation complexed with oxygen atoms. The uranyl ion has a distinctive yellow-green color and is often used as a marker in biochemistry and environmental science. There are several other synonyms for the uranyl group, including the uranyl ion, UO2 2+, and uranyl cation. Other related terms include uranate, uranyl carbonate, and uranyl nitrate. These terms are commonly used in the fields of nuclear chemistry, materials science, and environmental monitoring to describe the properties and behavior of uranium compounds.