| Noun | 1. | Red River - a tributary of the Mississippi River that flows eastward from Texas along the southern boundary of Oklahoma and through LouisianaLouisiana, Pelican State, LA - a state in southern United States on the Gulf of Mexico; one of the Confederate states during the American Civil War Lone-Star State, Texas, TX - the second largest state; located in southwestern United States on the Gulf of Mexico river - a large natural stream of water (larger than a creek); "the river was navigable for 50 miles" | |