资料来源 : Webster's Revised Unabridged Dictionary (1913)

Ledgment \Ledg"ment\ (-ment), n. (Arch.)
      (a) A string-course or horizontal suit of moldings, such
          as the base moldings of a building. --Oxf. Gloss.
      (b) The development of the surface of a body on a plane,
          so that the dimensions of the different sides may be
          easily ascertained. --Gwilt. [Written also
          {ledgement}, {legement}, and {ligement}.]