Associations to the word «Promethium»

Wiktionary

PROMETHIUM, noun. A metallic chemical element (symbol Pm) with an atomic number of 61.

Dictionary definition

PROMETHIUM, noun. A soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium.

Wise words

The right word may be effective, but no word was ever as effective as a rightly timed pause.
Mark Twain