1. (a unit strength of a radioactive source equal to one million disintegrations per second)
rutherford
synonim: rezerford
synonim: Rd

2. (a radioactive transuranic element which has been synthesized)
rutherfordium, Rf, unnilquadium, Unq, element 104, atomic number 104: : synonim: Rf
synonim: kurczatow