Constrictor
Pronunciation : Con*strict"or
Part of Speech : n.
Definition : 1. That which constricts, draws together, or contracts.
2. (Anat.)
Defn: A muscle which contracts or closes an orifice, or which compresses an organ; a sphincter.
3. (Zo?l.)
Defn: A serpent that kills its prey by inclosing and crushing it with its folds; as, the boa constrictor.
Source : Webster's Unabridged Dictionary, 1913