"significant indication" is correct and usable in written English.
You can use it to refer to a sign or signal that is important or meaningful. For example, "The sharp decrease in sales was a significant indication of the company's financial troubles."
At concentrations up to 40 mg mL 1 (above what is needed in later experiments) there was no statistically significant indication of haemolysis, indicating the polymers were compatible with RBCs.
The inverse Mills ratio term is statistically not different from zero at 10percentt level of significance (p = 0.2985 and p = 0.2318 for perceiving no precipitation and no temperature change respectively), indicating no statistically significant indication of selection bias.
But Bob Davis of Spin magazine delivered perhaps the most significant indication that when it comes to choosing winners the academy tends to back the local talent.
It will give us the first significant indication of Jeremy Corbyn's popularity with the electorate since he became Labour leader.
The most significant indication of how much resistance it is likely to face in Republican-led states has come from Florida.
This is a somewhat surprising, but none the less significant, indication of recent developments in the movement for the improvement of the lot of the aborigines.
It is a step that should not be avoided or neglected when significant indications of incompetency are present.
There are significant indications of an oxidizing facies to substitute for a more reducing facies at the transition from the central into the marginal zone of the HPPF.
The details are the first significant indications that MF Global received early warning signs that customer money was in jeopardy at the commodities brokerage firm.
The festival, called "¡Sí Cuba!," is one of the most significant indications that cultural relations between the United States and Cuba are thawing after nearly a decade in a deep freeze.
"We don't have any significant indications of other violent extremist activity [aside from Boko Haram], so in that respect, this is completely baffling," said Richard Moncrieff, central Africa director at the International Crisis Group.
