actinide [noun]

Definition of actinide:

any of a series of radioactive elements with atomic numbers 89 through 103

Synonyms of actinide:

● Actinoid

● Actinon

● Actinide ions

● Actinide oxide

● Actinides


Opposite/Antonyms of actinide:

● Inactivity

● Zygomorphic


Sentence/Example of actinide:

Traditional magnets are transition, lanthanide, or actinide metals.