0 present 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.
Ascertaining the law on a particular issue is just a matter of looking up the propositions that are applicable to the issue.
Ascertaining whether inter-chromosomal recombination is advantageous will also shed light on the evolutionary maintenance of one-step meiosis.
The meaning of musical performances depends on ascertaining which music was actually played at which events, which is never easy.
This has to be an important consideration in ascertaining the social worth of any new medical technique.
My discussion applies, however, to any legal system wherein moral principles figure among the criteria for ascertaining the law.
The problem of ascertaining degree of change is, in short, not resolved.
The main methodological limitation of the study was the reliance on retrospective methods for ascertaining childhood experiences and psychopathology.
In this second study, we directly examine the role of one methodological factor - the use of proband informant reports in ascertaining relative diagnosis.
