Definitions by eszett
red kryptonite
A variety of kryptonite created by Mr. Mxyzptlk that inflicts random physical changes in Kryptonians. Word has it that Mxyzptlk transferred a portion of his sample or stockpile to the obscure Internet user SonicDeathMonk3y.
red kryptonite by Eszett February 26, 2004
allotrope
one of at least two different forms of an element. Different allotropes of a substance often have very different properties from each other; e.g. white phosphorus (P4) is a highly reactive and toxic substance that glows in air due to its high reactivity and possesses a molecular structure, while red phosphorus (the stuff used to make strikers on match boxes) is a non-toxic substance that has a polymeric structure.
Spanish
technetium
A silvery element, at. no. 43, symbol Tc, that does not appear to occur in the Earth's crust at all due to its radioactivity. It is the lightest radioactive element and is produced by deuteron bombardment of molybdenum.
technetium by eszett May 15, 2003