Found 2 items, similar to berkelium.
English → English (WordNet) Definition: berkelium berkelium n : a radioactive transuranic element; discovered by bombarding americium with helium [syn: Bk, atomic number 97]
English → English (gcide) Definition: berkelium berkelium \ber*ke"li*um\ (b[~e]r*k[=e]"l[-e]*[u^]m), n. [from the city of Berkeley, California, location of the University of California campus where it was discovered.] a chemical element of the transuranic series. Chemical symbol Bk; atomic number 97; atomic weight 247. It is a radioactive element, with no stable isotopes; the longest-lived isotope is of mass number 247.07, decaying by alpha-emission with a half-life of 1,400 years. The isotope with atomic weight 249 has a half-life of 314 days, and was isolated in weighable quantities. Syn: Bk. [WordNet 1.5 +PJC]