Promethium (disambiguation) From Wikipedia, the free encyclopedia Look up Promethium or promethium in Wiktionary, the free dictionary. Promethium is a chemical element with symbol Pm and atomic number 61. Promethium may also refer to: Promethium, a fictional petroleum-based fossil fuel as well as a refined napalm-like substance in Warhammer 40,000 Promethium, the name of the Mechanic Empire's queen in the fictional universe of Leiji Matsumoto Promethium (Marvel Comics), a fictional, magical metal in the stories published by Marvel Comics Promethium (DC Comics), a fictional metal from DC Comics See also Prometheum, a genus of plants in the family Crassulaceae Pm (disambiguation) Proscenium, the concept of space in live theater Prometrium, a brand name of the drug progesterone All pages with titles beginning with Promethium All pages with titles containing Promethium Topics referred to by the same term This disambiguation page lists articles associated with the title Promethium.If an internal link led you here, you may wish to change the link to point directly to the intended article. Related Articles