praseodymium
n. Soft silvery metallic element of the lanthanide series. [greek prasios green]
n. An elementary substance, one of the constituents of didymium; -- so called from the green color of its salts. Symbol Ps. Atomic weight 143.6.
n. Soft silvery metallic element of the lanthanide series. [greek prasios green]
n. An elementary substance, one of the constituents of didymium; -- so called from the green color of its salts. Symbol Ps. Atomic weight 143.6.