-zə(r) noun
( -s )
1. : one that appraises (as real estate for determining tax rates or sales prices, imported articles for the assessing of tariff duties, damaged goods for salvage, or the property of bankrupt businesses for auction-sale value of assets)
2. : one that estimates status, excellence, or potentiality ; specifically : one that as a guide to the establishment of new businesses or advertising contracts studies a neighborhood to appraise its buying power, class of goods used, or services desired
3. : one that determines the authenticity of works of art by means of X ray and other scientific methods of examination