actinide series
noun Chemistry.
the series of radioactive elements that starts with actinium and ends with lawrencium.
Origin of actinide series
First recorded in 1940–45
Words nearby actinide series
actinic elastosis,
actinic granuloma,
actinic keratosis,
actinic ray,
actinide,
actinide series,
actiniform,
actinin,
actinism,
actinium,
actinium series
British Dictionary definitions for actinide series
actinide series
noun
a series of 15 radioactive elements with increasing atomic numbers from actinium to lawrencium