noun
actinide
Actinide (noun) means any of a group of 15 radioactive chemical elements running from actinium to lawrencium, placed below the lanthanides in the periodic table because they share similar chemical properties.
noun
1
Any of a group of 15 radioactive chemical elements running from actinium to lawrencium, placed below the lanthanides in the periodic table because they share similar chemical properties.
2
(chemistry) Any of a set of radioactive metal elements running from actinium to around nobelium.
3
(chemistry) Any of a group of 14 radioactive metal elements running from thorium to lawrencium.
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Etymology
Formed from actin- and -ide.
Synonyms
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actinon
actinoid
Related words
Rhymes for actinide
See all rhymes for actinide →Frequently asked questions
What is the meaning of actinide?
"actinide" (noun) means any of a group of 15 radioactive chemical elements running from actinium to lawrencium, placed below the lanthanides in the periodic table because they share similar chemical properties.
What is another word for actinide?
Other words for "actinide" include actinon, actinoid.
What are the different meanings of actinide?
"actinide" has 3 main meanings: 1. Any of a group of 15 radioactive chemical elements running from actinium to lawrencium, placed below the lanthanides in the periodic table because they share similar chemical properties; 2. (chemistry) Any of a set of radioactive metal elements running from actinium to around nobelium; 3. (chemistry) Any of a group of 14 radioactive metal elements running from thorium to lawrencium.
