(cricket) A statistical estimation of the scoring ability of a batsman; equal to the total number of runs scored divided by the number of times out.

Expressed as a measure of central tendency (usually the arithmetic mean). / (idiomatic) Usually, typically; as a rule; as often as not.

An avenue in Manhattan, New York, known as the center of the American advertising industry. / (by extension) The American advertising industry, regardless of location.

(pharmacology) The quality of being efficacious when taken by mouth (usually of a medicinal drug).

Abbreviation of average.

Better than average.

(pathology) Any strain of influenza carried by and primarily affecting birds.

A tendency of decision-makers to give preference, usually unconsciously, to recent information, vivid images that evoke emotions, and specific acts and behaviors that they personally observed.

avian influenza

(idiomatic) A hypothetical average or generic individual; the common man (or person, by extension).