meta-analysis
noun
meta-anal·y·sis
ˌme-tə-ə-ˈna-lə-səs 
: a quantitative statistical analysis of several separate but similar experiments or studies in order to test the pooled data for statistical significance
Examples of meta-analysis in a Sentence
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One meta-analysis observed significant reductions in fasting glucose and hemoglobin A1c (HbA1c) with 35 mg of zinc supplementation daily.
—
Melissa Nieves, Verywell Health, 4 June 2025
Brennan also highlighted a meta-analysis of 67 different studies of COVID vaccines given during pregnancy.
—ArsTechnica, 2 June 2025
While some consumer watchdogs have raised alarms on the link between dyes and behavioral disorders such as attention-deficit/hyperactivity disorder, the best studies and meta-analyses to date have not found any reliable link.
—Ross Marchand, Boston Herald, 30 May 2025
Some studies suggest yes: A meta-analysis published in 2023 in Nutrition Reviews crunched the data on 23 studies and concluded taking creatine was linked to better memory, especially in older adults age 66 to 76.
—Cindy Kuzma, SELF, 28 May 2025
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Melissa Nieves, Verywell Health, 4 June 2025
Brennan also highlighted a meta-analysis of 67 different studies of COVID vaccines given during pregnancy.
—ArsTechnica, 2 June 2025
While some consumer watchdogs have raised alarms on the link between dyes and behavioral disorders such as attention-deficit/hyperactivity disorder, the best studies and meta-analyses to date have not found any reliable link.
—Ross Marchand, Boston Herald, 30 May 2025
Some studies suggest yes: A meta-analysis published in 2023 in Nutrition Reviews crunched the data on 23 studies and concluded taking creatine was linked to better memory, especially in older adults age 66 to 76.
—Cindy Kuzma, SELF, 28 May 2025
See All Example Sentences for meta-analysis
Cite this Entry
“Meta-analysis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/meta-analysis. Accessed 13 Jun. 2025.
Copy CitationMedical Definition
meta-analysis
noun
meta-anal·y·sis
ˌmet-ə-ə-ˈnal-ə-səs
: quantitative statistical analysis that is applied to separate but similar experiments of different and usually independent researchers and that involves pooling the data and using the pooled data to test the effectiveness of the results
the report … on low cholesterol presented a comprehensive meta-analysis of 32 randomized studies involving 42,000 individuals—Scientific American Medicine Bulletin
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