TAVAI POENAMMOO, an island in the South Pacific Ocean, being the more southerly of the two which form New Zealand, and separated from the northern island by a channel called Cook's Straits, that celebrated navigator having sailed round them both in the year 1769. The island is about 500 miles in length from south-west to north-east and from 55 to 140 broad. Long. 184. 45. to 193. 18. W. Lat. 40. 36. to 47. 20. S. See ZEALAND, NEW.