The phrase "a definitive data" is not correct in standard written English.
The word "data" is typically treated as a plural noun in formal contexts, so it should be "definitive data" without the article "a."
Example: "The researchers presented definitive data that supported their hypothesis."
Alternatives: "conclusive data" or "decisive data."
Dirt Protocol isn't trying to create a single, definitive data repository, but rather to provide the tools for developers to build their own databases.
Despite the importance of this health problem, there is a lack of definitive data on the effects of the intensive control of glycemia and other CVD risk factors on CVD event rates in patients with type 2 diabetes.
Though a paucity of definitive data from controlled studies regarding interactions between HAART medication and antipsychotics exists, CYP450 enzyme disturbances are documented within each drug class.
After having assessed the quality of quasi-definitive data based on a systematic comparison with definitive data in 2008, we propose a quality standard for this new data type.
And sometimes all it takes to bring a high-flying sector crashing to the ground are a few, high profile cases of chicanery that paints the entire industry with a broad brush of suspicion (and in a sector sorely lacking definitive data to quantify the good work you do, the industry is particularly vulnerable).
Biological and epidemiological data regarding the link between sexual behavior and HPV-associated cancers indicate a probable connection, although definitive data are needed.
Colonoscopy is considered the criterion standard for detecting colorectal cancer; adequate preparation is crucial for an effective colonoscopy, but definitive data on the optimal preparation are lacking.
"The data should be close to the expected definitive value, but is to be delivered more rapidly than an observatory's annual definitive data.
In the UK, last year's Writing the Future report from Spread the Word found publishers estimated that around 8% of their workforce self-identified as coming from a BAME background, but more definitive data could not be gathered.
