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praseodymium: Meaning and Definition of

pra•se•o•dym•i•um

Pronunciation: (prā"zē-ō-dim'ē-um, prā"sē-), [key]
— n. Chem.
  1. a rare-earth, metallic, trivalent element, named from its green salts. Symbol: Pr; at. wt.: 140.91; at. no.: 59; sp. gr.: 6.77 at 20°C.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
prase prat
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