WordReference Random House Unabridged Dictionary of American English © 2026
quad•ri•syl•la•ble
(kwod′rə sil′ə bəl),USA pronunciation n.
quad•ri•syl•lab•ic
(kwod′rə si lab′ik),USA pronunciation quad′ri•syl•lab′i•cal, adj.
- Linguisticsa word of four syllables.
- 1650–60; quadri- + syllable