0 past simple and past participle of ascertain --
1 to discover something: --
[ + that ] I ascertained that no one could overhear us before I told Otto the news.
[ + question word ] Have you ascertained whether she's coming or not?
The police have so far been unable to ascertain the cause of the explosion.
This is so because strong indifference is now ascertained by means of a counterfactual situation.
The location and repair of recent water pipe breaks was ascertained.
For individuals and families that were ascertained more than once, they were counted once for each time they were independently ascertained.
To date however, the effect of an intestinal adult tapeworm on leucocyte migration from the pronephros has not been ascertained.
It will be no wonder if in the future these sciences advance further and the things which today appear fully ascertained may be proven wrong.
Each condition was ascertained by a separate question.
This was ascertained when the practitioners were asked to explain their reasons for their decisions.
First, the sample is epidemiologically ascertained, thereby eliminating possible biases associated with treatment-seeking.
