Definition of: boa

(bō′ə) noun plural bo·as
1. Any of several non-venomous serpents (family Boidae) having vestigial hind legs in the form of stout spurs, including the anaconda and the python.
2. A tropical American snake (Constrictor constrictor), distinguished from a python and notable for the crushing power of its coils: also boa constrictor.
3. A long feather or fur neckpiece for women. [<L]