/ Dictionary / Index P pronuke: Meaning and Definition of Find definitions for: pro•nuke Pronunciation: (prō-nk', -nyk'), [key] — Informal. Informal. —adj. pronuclear. —n. a person who advocates the building or use of nuclear power plants or nuclear weapons. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pronucleus pronunciamento Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language