"initial use" is a correct and usable phrase in written English.
It means the first or earliest use of something. For example, "The initial use of this technology was to increase efficiency in the workplace."
It's good for 24 hours after its initial use.
Zimmer sprung out of the dugout, screaming at Clark for his initial use of profanity.
The initial use of animals here has now meant an alternative to animals for breast cancer research.
The limited speed reflects the technology's expected initial use in heavy traffic".
Many applications of numerical control have been developed since its initial use to control machine tools.
The initial use of a quote from the blog was wrong.
For simple ailments, the Siddha practitioner advises the initial use of herbs.
"Without Dr. Barnard's initial use of the brain-dead patient, we could not have gone ahead" to make heart transplants a standard therapy, Dr. Shumway said.
DDT is a persistent organic compound and can remain in the environment long after its initial use, entering the food chain and accumulating in fatty tissue.
Its initial use seems to have been as a means to reduce irregularities and deception in elections.
Thousands of hearing-disabled people benefited from Mr. Krim's initial use of the transistor in compact hearing aids.
