Definitions from Wiktionary (actinide)
▸ noun: (chemistry) Any of the 15 radioactive elements of the periodic table from actinium to lawrencium that are positioned under the lanthanides, to which they have similar chemistry.
▸ noun: (chemistry) Any of the 14 elements from actinium to nobelium (lawrencium is excluded by some authors as it is a d-block rather than an f-block element).
▸ noun: (chemistry) (dated) Any of the 14 elements from thorium to lawrencium (actinium having been mistakenly excluded because it was thought to be a d-block element in the past).
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▸ noun: (chemistry) Any of the 15 radioactive elements of the periodic table from actinium to lawrencium that are positioned under the lanthanides, to which they have similar chemistry.
▸ noun: (chemistry) Any of the 14 elements from actinium to nobelium (lawrencium is excluded by some authors as it is a d-block rather than an f-block element).
▸ noun: (chemistry) (dated) Any of the 14 elements from thorium to lawrencium (actinium having been mistakenly excluded because it was thought to be a d-block element in the past).
Similar:
actinoid,
superactinide,
organoactinide,
eka-actinium,
transactinide,
actinon,
actineon,
actinate,
Acton,
exactinio,
more...
Opposite:
Phrases:
Adjectives:
▸ Words similar to actinide
▸ Usage examples for actinide
▸ Idioms related to actinide
▸ Wikipedia articles (New!)
▸ Popular adjectives describing actinide
▸ Words that often appear near actinide
▸ Rhymes of actinide
▸ Invented words related to actinide