Protactinium

Pronunciation

• UK IPA: /ËŒpɹəʊ.tækˈtɪn.i.É™m/
• US enPR: prō"tăktÄ­'nÄ“É™m, IPA: /ËŒpɹoÊŠ.tækˈtɪn.i.É™m/

Origin

- + actinium.

Full definition of protactinium

Noun

1. A chemical element (symbol Pa) with atomic number 91.

Synonyms

• protoactinium dated

Derived terms

• eka-protactinium

Related terms

• actinium