v.
1.add nonfissionable material to (fissionable material) so as to make unsuitable for use in an atomic bomb
2.modify (as a native protein) especially by heat, acid, alkali, or ultraviolet radiation so that all of the original properties are removed or diminished
3.make (alcohol) unfit for drinking without impairing usefulness for other purposes
Idiom of the Day
on the hour
exactly on the hour mark (12:00, 1:00 etc.)
My grandmother must take her medicine on the hour.