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

Don't use words too big for the subject. Don't say "infinitely" when you mean "very"; otherwise you'll have no word left when you want to talk about something really infinite.
C. S. Lewis