Online Dictionary of Real Estate Appraisal
      
 
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The Online Dictionary of Real Estate Appraisal provides users with electronic access to all the terms and definitions in The Dictionary of Real Estate Appraisal, Fifth Edition, in a convenient, user-friendly format. Using the online dictionary, you can:

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August 01, 2014

base line

1. In the government survey system of land description, a line running due east and west through the initial point of a principal meridian from which township lines are established.
2. The topographic centerline of a survey such as one to delineate the route of a highway.