/ Dictionary / Index T tetrapylon: Meaning and Definition of Find definitions for: tet•ra•py•lon Pronunciation: (te"tru-pī'lon), [key] — pl. -la a structure having four gateways as features of an architectural composition. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tetrapterous tetrarch Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language