abut·ment /əˈbʌtmənt/
 鄰接,接界,橋礅


 abut·ment /əˈbətmənt/ 名詞
 橋基,基牙


 A·but·ment n.
 1. State of abutting.
 2. That on or against which a body abuts or presses; as (a) Arch. The solid part of a pier or wall, etc., which receives the thrust or lateral pressure of an arch, vault, or strut. --Gwilt. (b) Mech. 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.  (c) In breech-loading firearms, the block behind the barrel which receives the pressure due to recoil.

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 abutment
      n 1: point of contact between two objects or parts
      2: a masonry support that touches and directly receives thrust
         or pressure of an arch or bridge