1. ad hoc - Adjective
2. ad hoc - Adverb
3. ad hoc - Phrase
4. ad hoc - Adjective Satellite
for or concerned with one specific purpose
often improvised or impromptu
for one specific case
Source: WordNetad-hoc
Although size and book to market equity seem like ad hoc variables for explaining average stock returns, we have reason to expect that they proxy for common risk factors in returns. Eugene Fama
You know, the whole philosophy of ad hoc combinations has its strengths and its weaknesses. Evan Parker
The migration from ad hoc use to commercialisation cannot be rushed. To reach ubiquity you have to pass through sharing. Kevin Kelly (editor)
Enterprise Engineering is based on the belief that an enterprise, as any other complex system can be designed or improved in an orderly fashion thus giving a better overall result than ad hoc organisation and design. Peter Bernus
In my philosophy, science is an unrelenting battle against ad hoc explanation. No other field in psychology with which I have been acquainted has been so infested by ad hoc theories as the attempts to explain social class, racial, and ethnic group differences on various tests of mental ability. Arthur Jensen
Positivism eliminates any kind of natural law principle - for example, that there are economic laws which can be transgressed only at your peril. With positivism, there is a tendency to leap into ad hoc economic theory. Murray Rothbard