The term LARGE BOA can be solved by the 8-letter word ANACONDA. Anacondas are large, non-venomous snakes found in tropical South America. They are members of the boa constrictor family and are among the largest snakes in the world, growing up to 17 feet in length. Anacondas are semi-aquatic and are known for their swimming abilities. They are also powerful constrictors, using their muscular bodies to squeeze their prey until it suffocates.