"special application" is a grammatically correct phrase and can be used in written English.
It is commonly used to refer to a specific use or purpose of something, often in reference to technology or software. Example: I have a special application on my phone that helps me track my daily water intake.
A reduced oxidation was observed which proves the principle applicability of the plasma pulse process for this special application.
The skinny: Android users are encouraged to download a special application ("Kellogg's "Amazing Spider-Man" Exclusive App) that can read QR codes on specially marked boxes of Kellogg's brand cereals.
Since the properties of synthetics vary considerably, each synthetic lubricant tends to find a special application.
A special application of helix TWTs is their use as amplifiers in communications or scientific satellites and other spacecraft.
This approach to religious problems found special application as Islām spread to new lands and encountered new environments.
A special application of this technique, imparting plissé effects, is the printing of the fabric with a resist, followed by treatment with caustic soda.
In the suburbs, of course, everyone in town goes to the same high school without having to make a special application -- one less headache for all concerned.
"We are talking here about the free exercise clause and about the establishment clause, and you say they have no special application?" Justice Elena Kagan agreed.
A special application of this type of radioactivity age method, carbon-14 dating, has proved especially useful to physical anthropologists and archaeologists.
A special application of the blood-transfusion effect involves repeated small blood transfusions from a potential donor who is a close relative of the patient.
Some of these purposes, like visiting close relatives or doing academic research, were covered by a "general" license that let people travel without having to fill out a special application.
