Very large boa of tropical America and West Indies; SYN. Constrictor constrictor.
A tropical American boa (Boa constrictor syn. Constrictor constrictor) that is light brown barred or mottled with darker brown and reaches a length of 10 feet (3 meters) or more.

Any of various large nonvenomous snakes that kill their prey by crushing it in its coils.

A muscle that contracts a cavity or orifice or compresses an organ.