| / English Dictionary |
ATOMIC NUMBER 21
I. (noun)
Sense 1
Meaning:
A white trivalent metallic element; sometimes classified in the rare earth group; occurs in the Scandinavian mineral thortveitite
Synonyms:
atomic number 21; Sc; scandium
Classified under:
Hypernyms ("atomic number 21" is a kind of...):
metal; metallic element (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)
Holonyms ("atomic number 21" is a substance of...):
thortveitite (a mineral consisting of scandium yttrium silicate; a source of scandium)
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