Symbol, Chemistry, Physics.
Baseball.
- right fielder.
- range finder.
- rapid-fire.
- reducing flame.
- Baseball. right field.
- Reserve Force.
abbreviation for
- rinforzandoAlso: rfz
the chemical symbol for
- rutherfordium
abbreviation for
- radio frequency
abbr.
- releasing factor
- rheumatoid factor
- rheumatic fever
- The symbol for rutherfordium.
Rf
- A synthetic, radioactive element that is produced by bombarding plutonium with carbon or neon ions. Its most stable isotope is Rf 261 with a half-life of 62 seconds. Atomic number 104. See Periodic Table.