The phrase "define the cause" is correct and can be used in written English.
It is typically used when discussing the root reason or origin of something. Here is an example: "The scientists were unable to definitively define the cause of the disease outbreak, but they speculated that it may have been caused by contaminated water."
As in Seebeck's case, Peltier failed to define the cause of the anomaly.
To describe the clinical features and to present results of new diagnostic methods to help define the cause of the clinical syndrome of intrapapillary hemorrhage with adjacent peripapillary subretinal hemorrhage (IHAPSH).
8 24 p.m. | Updated For the first time since removing Ann Curry from "Today" on NBC, the show's executive producer on Wednesday defended that decision and sought to define the cause of its recent ratings setbacks, including the end of its 16-year weekly winning streak.
In order to define the cause and relation between criteria, the IT2 FSs should be defuzzified into crisp numbers.
The structured information from the code changes could help define the cause of certain problems and from what parts of the app are surfacing issues.
This study, and the term "PTLDS," do not define the cause of the condition, but do provide a starting place for future studies.
First, the data for the area east of Newfoundland are not sufficient to define the causes of why the branching of the North Atlantic Current is stationary in its source area over the slope off Grand Banks2.
For these reasons an integrated study approach involving chemical mineralogical analysis and assessment of the environmental conditions is a useful tool to better define the causes of building materials deterioration.
Companies like Salesforce and Subaru have learned that it is not enough to just define the causes to donate to or match employee donations.
The first type are those that can be manipulated or controlled during the process of trial and define the causes of the hypotheses.
The advantage of our study design is that by longitudinally monitoring the impact of treatment-induced suppression of HBV replication with direct antivirals (entecavir), we were able to define the cause-effect relationship between the viral load and Treg/Th17 ratio.
