say it: as-ur-TAYND
ascertained is an adjective meaning "discovered or determined by scientific observation". It carries one recorded sense.
discovered or determined by scientific observation
“variation in the ascertained flux depends on a number of factors”
“the discovered behavior norms”
“discovered differences in achievement”
“no explanation for the observed phenomena”
Definitions, synonyms and semantic relations for ascertained come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.