/ Dictionary / Index E Erector Set: Meaning and Definition of Find definitions for: Erec'tor Set" Pronunciation: [key] — Trademark. Trademark. a brand of children's building game. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. erector E region Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language