birth rate

birthrate

[burth-reyt]
noun
the proportion of births to the total population in a place in a given time, usually expressed as a quantity per 1000 of population.

Origin:
1855–60; birth + rate1

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Collins
World English Dictionary
birth rate
 
n
the ratio of live births in a specified area, group, etc, to the population of that area, etc, usually expressed per 1000 population per year

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

birthrate or birth rate
n.
The ratio of total live births to total population in a specified community or area over a specified period of time, often expressed as the number of live births per 1,000 of the population per year.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
birth rate  
The ratio of total live births to total population in a specified community or area over a specified period of time. The birth rate is often expressed as the number of live births per 1,000 of the population per year.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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