The phrase "ad hoc use" is correct and usable in written English.
It is typically used to describe a specific, often temporary, use or application of something for a particular purpose or situation.
Example: "The committee decided to allow ad hoc use of the conference room for special events that arise unexpectedly."
Alternatives: "temporary use" or "specific use".
Now, some hotels are starting to manage visitors' previously ad hoc use of seats, tables and nooks — and, in some cases, charging for it.
However, the ad hoc use of such Web technologies per se is not sufficient to evolve the sampling scenario regarding SE surveys, since the size of samples is just one of the issues hampering the generalization of SE surveys' results.
Dreamed up while they were still in high school, the store has grown into a hive for readings, art fairs, in-store music shows, and any other ad hoc use its proprietors think of.
Numerous epidemiologic dissertations are based entirely on the ad hoc use of such secondary data sets.
We caution against the ad hoc use of NAC in the management of inhalational pulmonary injury.
8) The sometimes greater efficiency and sustainability of national NGO and community-based organizations in comparison to international NGOs requires more than ad hoc use of these institutions.
Such ad hoc uses of Botox are perfectly legal for doctors.
Information visualisation design is generally ad hoc using trial and error, and perhaps prior visualisation experiments.
The design and analysis of ladder diagram programs by engineers is often ad hoc using a variety of techniques that may be applied with varying levels of rigour.
The retrofitting of sustainable drainage systems (SuDS) is currently undertaken ad hoc using expert experience supported by minimal guidance based predominantly on hard engineering variables.
Gout in the general practice settings is often an episodic disease; the treatment is also often ad hoc, using colchicine and anti-inflammatory drugs.
