strip of uncut wood fibers created between the face cut or notch and the back cut that helps control direction in tree felling or limb removal. Holding wood.

Merriam-Webster Online Dictionary
hinge (noun)
a) a jointed or flexible device on which a door, lid, or other swinging part turns
b) a flexible ligamentous joint
c) a small piece of thin gummed paper used in fastening a postage stamp in an album
a determining factor - turning point
hinge (verb)
intransitive verb
transitive verb
to be contingent on a single consideration or point - used with on or upon the prosecution's case hinges on the DNA evidence to attach by or furnish with - hinges
hinge (Wikipedia)
A barrel hinge

A hinge is a mechanical bearing that connects two solid objects, typically allowing only a limited angle of rotation between them. Two objects connected by an ideal hinge rotate relative to each other about a fixed axis of rotation: all other translations or rotations being prevented, and thus a hinge has one degree of freedom. Hinges may be made of flexible material or of moving components. In biology, many joints function as hinges like the elbow joint.

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