WordReference Random House Unabridged Dictionary of American English © 2026
tet•ra•syl•la•ble
(te′trə sil′ə bəl, te′trə sil′-),USA pronunciation n.
tet•ra•syl•lab•ic
(te′trə si lab′ik),USA pronunciation tet′ra•syl•lab′i•cal, adj.
- Poetrya word or line of verse of four syllables.
- 1580–90; tetra- + syllable