boa
noun [ C ] uk/ˈbəʊ.ə/ us/ˈboʊ.ə/
(CLOTHING)
（尤指女式的）羽毛长围巾
a long, thin piece of clothing made of feathers, worn around the neck especially by women
a feather boa 羽毛长围巾
(SNAKE)
(also boa constrictor)巨蚺，巨蟒（产于中南美洲的一种巨型蟒蛇）
a large, strong snake, found in South and Central America, that kills animals and birds by wrapping itself around them and crushing them