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Promethium
Definition of Promethium
1.
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
Noun
Synonyms for word "promethium"
atomic number 61
pm
Semanticaly linked words with "promethium"
metal
metallic element
Hyponims for word "promethium"
metal
metallic element