Related Content
- Daily Word Quiz: supertonic
- Analogy of the Day: Today’s Analogy
- Frequently Misspelled Words
- Frequently Mispronounced Words
- Easily Confused Words
- Writing & Language
protoactinium: Meaning and Definition of
pro•to•ac•tin•i•um
Pronunciation: (prō"tō-ak-tin'ē-um), [key]
— n. Chem.
- protactinium.
See also:
- protoactinium (Thesaurus)
Trending
Here are the facts and trivia that people are buzzing about.
