Praseodymium
Pronunciation : Pra`se*o*dym"i*um
Part of Speech : n.
Etymology : [Praseo- + didymium.] (Chem.)
Definition : Defn: An elementary substance, one of the constituents of didymium; - - so called from the green color of its salts. Symbol Ps. Atomic weight 143.6.
Source : Webster's Unabridged Dictionary, 1913