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. [M.E. averays, loss from damage to ship or cargo, fr. It. avaris, fr. Ar. 'awariya, damaged goods, + damage]
- pure-tone a. a. in decibels of the thresholds for pure tones at 500, 1000, and 2000 Hz.
Medical dictionary. 2011.