/ Dictionary / Index I ICF: Meaning and Definition of Find definitions for: ICF Pronunciation: [key] inertial confinement fusion: an experimental method for producing controlled thermonuclear energy by focusing laser beams onto a pellet containing deuterium and tritium. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ice water ich Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language