Lexic.us

Definition of Promethium

1. Noun. A soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium.

Definition of Promethium

1. Noun. a metallic chemical element (''symbol'' Pm) with an atomic number of 61. ¹

¹ Source: wiktionary.com

Definition of Promethium

1. [n -S]

Lexicographical Neighbors of Promethium

Literary usage of Promethium

Below you will find example usage of this term as found in modern and/or classical literature:

1. Proceedings of the American Pharmaceutical Association at the Annual Meeting by American Pharmaceutical Association, National Pharmaceutical Convention, American Pharmaceutical Association Meeting (1894)
"promethium.—This is an alloy containing 60 per cent, of copper, 38 per cent, of zinc, and 2 per cent, of aluminum. These metals are melted together and ..."

2. Men of the Time ; Or, Sketches of Living Notables by J C Garlington (1852)
"... of " Clio," containing some pieces that are regard-d as among the finest of his works; and the second part of "promethium" appeared the following year. ..."

3. Journal of the British Dental Association by British Dental Association (1894)
"promethium is the name given to a new alloy composed of copper 60 parts, zinc 38 parts, and aluminium 2 parts. The metals are melted together, and sodium or ..."

4. Creating the New World: Stories & Images from the Dawn of the Atomic Age by Theodore Rockwell (2003)
"... and they have names that sound as if they belong on Star Trek, names such as gadolinium, dysprosium, lutetium, ytterbium, promethium and praseodymium. ..."

5. Creating the New World: Stories & Images from the Dawn of the Atomic Age by Theodore Rockwell (2003)
"... and they have names that sound as if they belong on Star Trek, names such as gadolinium, dysprosium, lutetium, ytterbium, promethium and praseodymium. ..."

6. Mineral Tolerance of Animals by National Research Council (U. S.) (2005)
"... lanthanum (La), lutetium (Lu), neodymium (Nd), praseodymium (Pr), promethium (Pm), samarium (Sm), terbium (Tb), thulium (Tm), and ytterbium (Yb). ..."

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