Definitions for doubling time
dou·bling time

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1. Doubling time

   The doubling time is the time it takes for a population to double in size/value. It is applied to population growth, inflation, resource extraction, consumption of goods, compound interest, the volume of malignant tumours, and many other things that tend to grow over time. When the relative growth rate (not the absolute growth rate) is constant, the quantity undergoes exponential growth and has a constant doubling time or period, which can be calculated directly from the growth rate. This time can be calculated by dividing the natural logarithm of 2 by the exponent of growth, or approximated by dividing 70 by the percentage growth rate (more roughly but roundly, dividing 72; see the rule of 72 for details and derivations of this formula). The doubling time is a characteristic unit (a natural unit of scale) for the exponential growth equation, and its converse for exponential decay is the half-life. For example, given Canada's net population growth of 0.9% in the year 2006, dividing 70 by 0.9 gives an approximate doubling time of 78 years. Thus if the growth rate remains constant, Canada's population would double from its 2006 figure of 33 million to 66 million by 2084.

WikidataRate this definition:5.0 / 2 votes

1. Doubling time

   The doubling time is the period of time required for a quantity to double in size or value. It is applied to population growth, inflation, resource extraction, consumption of goods, compound interest, the volume of malignant tumours, and many other things that tend to grow over time. When the relative growth rate is constant, the quantity undergoes exponential growth and has a constant doubling time or period, which can be calculated directly from the growth rate. This time can be calculated by dividing the natural logarithm of 2 by the exponent of growth, or approximated by dividing 70 by the percentage growth rate. The doubling time is a characteristic unit for the exponential growth equation, and its converse for exponential decay is the half-life. For example, given Canada's net population growth of 0.9% in the year 2006, dividing 70 by 0.9 gives an approximate doubling time of 78 years. Thus if the growth rate remains constant, Canada's population would double from its 2006 figure of 33 million to 66 million by 2084.

How to pronounce doubling time?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say doubling time in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of doubling time in Chaldean Numerology is: 9

2. Pythagorean Numerology

   The numerical value of doubling time in Pythagorean Numerology is: 5

Examples of doubling time in a Sentence

1. Anthony Fauci:

   National Institute of Allergy has what we call a doubling time of about three days. And if you do the math on National Institute of Allergy, if you have just a couple of percentage of the isolates being Omicron, very soon it's going to be the dominant variant.

2. Rochelle Walensky:

   In looking at early data on transmissibility of Omicron from other countries, we expect to see the proportion of Omicron cases here in the United States continue to grow in the coming weeks, early data suggest that Omicron is more transmissible than Delta, with a doubling time of about two days.

References

1. ^ Wikipedia
   https://en.wikipedia.org/wiki/Doubling_Time
2. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=doubling time