constrictor

Noun

WordNet 3.0

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

Constrictor \Con*strict"or\, n.

1.That which constricts, draws together, or contracts. [1913 Webster]

2.(Anat.) A muscle which contracts or closes an orifice, or which compresses an organ; a sphincter. [1913 Webster]

3.(Zool.) A serpent that kills its prey by inclosing and crushing it with its folds; as, the boa constrictor. [1913 Webster]