The phrase "a certain indication of" is correct and usable in written English.
It can be used when you want to suggest that something serves as a sign or signal of a particular condition or situation.
Example: "The sudden drop in temperature is a certain indication of the approaching storm."
Alternatives: "a clear sign of" or "a definite signal of".
Our study only demonstrates that in experienced hands operating on a coracoid or acromion fracture with a certain indication, displacement of > 1 cm, is safe and can result in successful fracture union and pain-free motion.
Excluded as inputs were ORs for condensation (a less certain indication of potential microbial contamination), ORs per unit area of visible mold or water damage, ORs for "suspected moisture problem," and ORs for higher measured airborne concentrations of molds, bacteria, ergosterol, glucan, or endotoxin.
In its review of election-related advertising, Facebook said it had also found an additional 2,200 ads, costing $50,000, that had less certain indications of a Russian connection.
FROM a reliable source I have received certain indications of Herr von Ribbentrop's present attitude to the International problems of the moment, which it appears to me advisable to pass on to your department.
Since the mid-1990s this 55-year-old, a Hawaii resident, has been collecting licensing fees on the common procedure for testing the blood of pregnant women for certain indications of Down syndrome in a fetus.
The report cleared the Gulf state of corruption, although it noted that there were "certain indications of potentially problematic conduct of specific individuals".
It also said there were "certain indications of potentially problematic conduct of specific individuals in the light of relevant Fifa ethics rules".
But certain indications of critical attacks on his contemporary Galen (129 216 CE) suggest that he was engaged in controversy with other contemporaries as well.
Second, while we are able to provide certain indications of relations between institutional variables and the research methods adopted by doctoral students, we cannot establish robust multivariate statistical findings that allow for the identification of certain ideal types in our dataset.
The food industry said it was pleased that the agency had given it three years to carry out the rule, but also said it planned to seek permission to keep using small amounts of trans fats in certain products, an indication of just how difficult it is to root them out.
