| praseodymium | (n) a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process, Syn. Pr, atomic number 59 |
| Praseo- | [ Gr. &unr_; leek-green, green, fr. &unr_; a leek. ] A combining form signifying green; |
| Praseodymium | n. [ Praseo- + didymium. ] (Chem.) An elementary substance, one of the constituents of didymium; -- so called from the green color of its salts. Symbol Ps. Atomic weight 143.6. [ 1913 Webster ] |
| Praseolite | n. [ Praseo- + -lite. ] (Min.) A variety of altered iolite of a green color and greasy luster. [ 1913 Webster ] |
| Praseodym { n } [ chem. ] | praseodymium [Add to Longdo] |