Definition: A value that represents or summarizes the relevant features of a set of values; it is usually computed by a mathematical manipulation of the individual values in a set to equalize them and determine a mean.
[M.E. averays, loss from damage to ship or cargo, fr. It. avaris, fr. Ar. 'awariya, damaged goods, + damage]
Search Stedman's Medical Dictionary
Examples: glitazone, GI cocktail, etc.