/ Dictionary / Index S soldering iron: Meaning and Definition of Find definitions for: sol'dering i"ron Pronunciation: [key] an instrument for melting and applying solder. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. solder soldier Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language