ruth·er·for·di·um 
(rŭth′ər-fôrdē-əm)
(rŭth′ər-fôrdē-əm)n. Symbol Rf
An artificially produced radioactive element with atomic number 104 that has only been produced in trace amounts. The isotope with mass number 261 has the longest confirmed half-life (65 seconds), although isotopes with longer half-lives have been reported. See Periodic Table.
[After Ernest Rutherford.]
- distinction
- distinctive
- distinctively
- distinctiveness
- distinctly
- distinctness
- distinguish
- distinguishable
- distinguishably
- distinguished
- Distinguished Conduct Medal
- Distinguished Flying Cross
- Distinguished Service Cross
- Distinguished Service Medal
- Distinguished Service Order
- distingué
- distort
- distorter
- distortion
- distortional
- distortionary
- distortive
- distract
- distracted
- distractedly