The phrase "a definite relation between" is correct and usable in written English.
It can be used when discussing a clear or specific connection or association between two or more entities or concepts.
Example: "There is a definite relation between exercise and improved mental health."
Alternatives: "a clear connection between" or "a specific link between".
Furthermore, doctors will tell you that there is a definite relation between anger and ulcers.
Based on spherical polar coordinates, a quantizer of infinite data rate is proposed with a definite relation between the quantized data and the corresponding quantization error.
The fact that there exists a definite relation between crystal orientation and surface morphology for the annealed W thin films suggests that the changes of film texture coefficient T110 depend on the competition between strain energy and surface energy.
Our analysis suggests that there is a definite relation between word valence and frequency of use.
Other studies on patients with breast and ovarian cancers have failed to demonstrate any definite relation between fascin immunoreactivity and tumour grade (Grothey et al, 2000b; Hu et al, 2000).
Best results are apparently obtained when the air swirl bears a definite relation to the fuel-injection rate.
I'm a great believer in salt, and I hate this government anti-salt thing: a decent sea salt contains lots of good minerals such as magnesium and zinc, which women are often lacking in, and if you talk to a doctor who actually knows their stuff, there is no definite relation between high blood pressure and salt.
If there were no definite relation between threads and cloth, then why does a pot not arise from threads?
Although the meta-analysis could not overcome these limitations completely, and most of include studies did not show the definite relation between ovarian cancer and endometriosis in spite of the suggested criteria for the diagnosis of ovarian cancer arising from endometriosis (Sampson, 1925), it has major advantages as follows.
There are definite relations between the reductive peak value of Au and the concentration of dsDNA.
It would take considerably larger samples to find matched pairs suitable for comparison in order to establish a definite causal relation between these effects and homeopathic treatment.
