Noun
That which constricts, draws together, or contracts.
A muscle which contracts or closes an orifice, or which compresses an organ; a sphincter.
A serpent that kills its prey by inclosing and crushing it with its folds; as, the boa constrictor.
Source: Webster's dictionaryA constrictor knot prepared for tightening using two rods and marlinespike hitches Tying Below is a basic method of tying. Source: Internet
Although the description is not entirely without ambiguity, the constrictor knot is thought to have appeared under the name "gunner's knot" in the 1866 work The Book of Knots, citation citation written under the pseudonym Tom Bowling. Source: Internet
And the broken windows are letting in all manner of intruders, termites, locust and the boa constrictor. Source: Internet
Imagine a boa constrictor that may not have the pounce and venom to kill instantly: there’s the long fight as the prey tires itself out, each little mistake seeing the snake wrap itself that bit tighter to the point of no escape. Source: Internet
If the constricted object (such as a temporarily whipped rope) ends very close to where a constrictor binds it, a boa knot may prove a more stable solution. Source: Internet
Geoffrey Budworth, The Ultimate Encyclopedia of Knots (London: Hermes House, 1999), 159. Security The constrictor and double constrictor are both extremely secure when tied tightly around convex objects with cord scaled for the task at hand. Source: Internet