Englisch
Detailed Synonyms for promethium in Englisch
promethium:
promethium [the ~] Nomen
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the promethium
– a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium 1the atomic number 61; the promethium; the Pm– a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium 1