Rutherfordium is a rare element with the atomic number 104. It is a synthetic element that was created by nuclear reactions and is named after the physicist Ernest Rutherford. Due to its rarity, there are not many synonyms for the word rutherfordium. The most common synonym for rutherfordium is simply "element 104." Other less common synonyms include unnilquadium, which is a temporary name based on the element's atomic number, and the abbreviation Rf, which is often used as shorthand in scientific literature. As it is a highly unstable element, there are not many practical applications for rutherfordium outside of scientific research.