Abutment n. : State of abutting.

Abutment n. : That on or against which a body abuts or presses

Abutment n. : The solid part of a pier or wall, etc., which receives the thrust or lateral pressure of an arch, vault, or strut.

Abutment n. : A fixed point or surface from which resistance or reaction is obtained, as the cylinder head of a steam engine, the fulcrum of a lever, etc.

Abutment n. : In breech-loading firearms, the block behind the barrel which receives the pressure due to recoil.

Example:
Can a full erupted wisdom tooth that is straight be used as an Abutment for bridge?

Taxonomy
abutment, bridge abutment, implant, Prosthetic, free encyclopedia, dental implant, ceramic, ceramic crown, spans, tooth, prosthetic implant, implant abutments, Ceramic abutments, footing, any length, Modern bridge, Implant Dentistry, search.

Defination from the web:
Abutment is also the term for a connecting element used to attach prosthetics to a dental implant that is Osseointegrated. ... with proper screw design and torquing of the abutment. The images to the right show how a ceramic abutment can enhance a ceramic crown by giving it a ...