Associations to the word «Actinide»

Wiktionary

ACTINIDE, noun. (inorganic chemistry) Any of the 14 radioactive elements of the periodic table that are positioned under the lanthanides to which they have similar chemistry.

Dictionary definition

ACTINIDE, noun. Any of a series of radioactive elements with atomic numbers 89 through 103.

Wise words

A word is not a crystal, transparent and unchanged; it is the skin of a living thought and may vary greatly in color and content according to the circumstances and time in which it is used.
Oliver Wendell Holmes, Jr.