Butment

• (n.) 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. • (n.) A buttress of an arch; the supporter, or that part which joins it to the upright pier.
Found on http://thinkexist.com/dictionary/meaning/butment/

Butment

But'ment noun [ Abbreviation of Abutment .] 1. (Architecture) A buttress of an arch; the supporter, or that part which joins it to the upright pier. 2. (Masonry) The mass of stone or solid work at the end of a bridge, by which the extreme arches are sustained, or by ...
Found on http://www.encyclo.co.uk/webster/B/118

Butment

In architecture, a butment is a buttress of an arch; the supporter, or that part which joins it to the upright pier. The term is also applied to 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.
Found on http://www.probertencyclopaedia.com/browse/TB.HTM
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