[1] : The Collaborative International Dictionary of English v.0.48

butment \but"ment\, n. abbreviation of abutment.
   1. arch. a buttress of an arch; the supporter, or that part
      which joins it to the upright pier.
      1913 webster

   2. masonry the mass of stone or solid work at the end of a
      bridge, by which the extreme arches are sustained, or by
      which the end of a bridge without arches is supported.
      1913 webster

   butment cheek carp., the part of a mortised timber
      surrounding the mortise, and against which the shoulders
      of the tenon bear. --knight.
      1913 webster butt
see also:
abutment butment cheek 

Butment >> B Words
Butment, definition of term: Butment
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