polonium

/pəˈləʊ.nɪ.əm/

UK: /pəˈləʊ.nɪ.əm/

PƏLƏƱ · nɪ · əm (3 syllables)

English Noun Top 44,609

Definition

A rare, highly radioactive chemical element (symbol Po) with atomic number 84.

Etymology

From New Latin polonium, from Medieval Latin Polonia (“Poland”), named after Marie Curie's homeland.