promethium
promethium · promethiums
прометій
прометий
Promethium
A metallic chemical element with an atomic number of 61A metallic chemical element (symbol Pm) with an atomic number of 61.
/pɹoʊˈmiːθiəm/
Meaning
2 senses(uncountable)A metallic chemical element (symbol Pm) with an atomic number of 61.
Promethium
проме́тийprométij
проме́тійprométij
A metallic chemical element (symbol Pm) with an atomic number of 61.
(countable)An atom of this element.
More definitions
- 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
Translations
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Origin
1945. From the name of the Greek god Prometheus, who stole the fire from Mount Olympus and1945. From the name of the Greek god Prometheus, who stole the fire from Mount Olympus and brought it down to mankind + -ium.
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Forms
plural: promethiumsSynonyms
5 synonymsmetallic element:cycloniumflorentiumillinium
Close in meaning
- 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:Pmatomic number 61
Word family
5 related wordsLessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable