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Birthrate

noun

Noun

1
The ratio of total live births to total population for a specific community or nation in a specified period; often expressed in births per thousand per year.
"In higher education a similar transformation is being pulled forward: Colleges were expecting a grim landscape in the later 2020s, because 2010s birthrates were so low, but now a decline in foreign enrollment and an acceleration of online learning will threaten marginal state schools and possibly close small liberal-arts colleges much sooner."
2
the ratio of live births in an area to the population of that area; expressed per 1000 population per year wordnet

From birth + rate.

Unscramble this word: birthrate