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Hasil cari dari kata atau frase: actinium(0.01188 detik)
Found 2 items, similar to actinium.
English → English (WordNet)
n : a radioactive element of the actinide series; found in
uranium ores [syn: Ac, atomic number 89]
English → English (gcide)
Actinium \Ac*tin"i*um\, n. [Gr. ?, ?, ray.] (Chem.)
A supposed metal, said by Phipson to be contained in
commercial zinc; -- so called because certain of its
compounds are darkened by exposure to light.