Constrictor

• POS: Noun
• HYPHEN: con=stric=tor

CIDE DICTIONARY

Constrictor, n. 

•  That which constricts, draws together, or contracts.  [1913 Webster]
•  A muscle which contracts or closes an orifice, or which compresses an organ; a sphincter.  [1913 Webster]
•  A serpent that kills its prey by inclosing and crushing it with its folds; as, the boa constrictor.  [1913 Webster]

OXFORD DICTIONARY

Constrictor, n.
1 any snake (esp. a boa) that kills by coiling round its prey and compressing it.
2 Anat. any muscle that compresses or contracts an organ or part of the body.

Etymology

mod.L (as constrict)