noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A rare, highly radioactive chemical element (symbol Po) with atomic number 84. uncountable, usually
2. 2
   a radioactive metallic element that is similar to tellurium and bismuth; occurs in uranium ores but can be produced by bombarding bismuth with neutrons in a nuclear reactor wordnet

Synonyms

All synonyms

atomic number 84elementgoldironleadmetal

Example

More examples

"Trace elements of proven dietary importance do not include polonium-210."

Etymology

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

Related phrases

eka-poloniumpolonium hydridepolonium-210atomic number

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.