What does actinide mean?
Actinide means 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..
Actinide
/ˈæktɪnaɪd/ · noun
Meaning
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..
Definitions by Sense
- 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.
- 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).
- (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).
Example Sentences
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Synonyms for actinide
Antonyms for actinide
Related Words
Word Forms
- actinides
Usage Notes
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Frequently Asked Questions
What is a synonym for actinide?
The closest synonym depends on the sentence and intended sense.
What is the opposite of actinide?
The opposite depends on the specific sense.
How do you use actinide in a sentence?
Use actinide where its definition matches the intended context.
Sources & Attribution
FreeDictionaryAPI.com / Wiktionary · Original source · CC BY-SA 4.0
Dictionary data is provided by FreeDictionaryAPI.com and sourced from Wiktionary under its stated license.