- an iodide with the maximum proportion of iodine.
Origin of periodide
1810–20; period(ic acid) + -ide
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for periodide
Mercury, periodide of, an exception to the law of conduction?
I was unable to contrast it with the protiodide, the latter being converted into mercury and periodide by heat.
Even when a little of the protiodide and iodine are merely rubbed together in a mortar, a portion of the periodide is formed.
The periodide of mercury is a brilliant red pigment, but somewhat evanescent.