actinide
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/ˈæktɪnaɪd/
English
Definitions
noun
- Any of the 14 radioactive elements of the periodic table that are positioned under the lanthanides, to which they have similar chemistry.
Related words
Synonyms
tetravalentactinoidsuperactinideorganoactinideeka-actiniumtransactinideactinonactineonactinateactonexactinioaktonpseudohomologastatidelantanoidtransition element