1. Any of various large, nonvenomous, chiefly tropical snakes of the family Boidae, which includes the python, anaconda, boa constrictor, and other snakes that coil around and suffocate their prey.
2. A long fluffy scarf made of soft material, such as fur or feathers.
3. Middle English
4. from Latin boa [a large water snake]
源自 拉丁语 boa [大水蛇]