WordNet
- position 1,000,000,000 in a countable series of things
- the ordinal number of one billion in counting order
- one part in a billion equal parts (同)billionth
- the number that is represented as a one followed by 12 zeros; in the United Kingdom the usage followed in the United States is frequently seen (同)one million million, 1000000000000
- the number that is represented as a one followed by 9 zeros (同)one thousand million, 1000000000
- denoting a quantity consisting of one thousand million items or units in the United States
- denoting a quantity consisting of one million million items or units in Great Britain
PrepTutorEJDIC
- 10億番目の,10億分の1の / 《英で,もと》1兆番目の,1兆分の1の / 10億分の1 / 《英で,もと》1兆分の1
- 『10億』(thousand million) / 《英》『兆』(《米》trillion)
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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2017/03/24 23:06:19」(JST)
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One billionth is the reciprocal of a billion, which means it has one of two definitions depending on whether the long scale or short scale definition is being used.[1]
Short scale
In the short (or American) scale, a billionth is equal to 0.000 000 001, or 1 x 10−9 in scientific notation. The prefix for this number is nano, and is abbreviated as "n" (for example, in electronics, one nanofarad would be written as 1 nF).[2]
Long scale
In the long (or English) scale, a billionth is equal to 0.000 000 000 001, or 1 x 10−12 in scientific notation. The prefix for this number is pico-, and is abbreviated as "p" (for example, in electronics, one picofarad would be written as 1 pF).[3]
References
- ^ Gardner, J. W. (April 6, 1961), "How many is a billion?", Letters, New Scientist: 888 .
- ^ Carstairs-McCarthy, Andrew (2002), An Introduction to English Morphology: Words and Their Structure, Edinburgh University Press, pp. 109–110, ISBN 9780748613267 .
- ^ Bray, Charles (2001), Dictionary of Glass: Materials and Techniques, University of Pennsylvania Press, p. 243, ISBN 9780812236194 .
Preceded by
Millionth |
Decimals |
Succeeded by
Trillionth |
English Journal
- Flow cytometric analysis of supravesicular structures in doxorubicin-containing pegylated liposomes.
- Milosevits G, Rozsnyay Z, Kozma GT, Milosevits J, Tömöry G, Robotka H, Rosivall L, Szebeni J.SourceNanomedicine Research and Education Center, Semmelweis University and Bay Zoltán Ltd., Budapest, Hungary.
- Chemistry and physics of lipids.Chem Phys Lipids.2012 May;165(4):482-7. doi: 10.1016/j.chemphyslip.2011.11.012. Epub 2011 Dec 20.
- In an attempt to develop a quantitative assay for supravesicular structures (SVS) - such as aggregates, fused liposomes or solid lipid particles - in liposome preparations, forward vs. side scattering of liposomal doxorubicin (Doxil/Caelyx) was analyzed by flow cytometry. Based on calibration with f
- PMID 22206709
- Nanomedicine in otorhinolaryngology: what does the future hold?
- Philpott CM, Gane S, McKiernan D.SourceSchool of Medicine, Health Policy and Practice, University of East Anglia, Norwich, NR4 7TJ, UK. C.Philpott@uea.ac.uk
- European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery.Eur Arch Otorhinolaryngol.2011 Apr;268(4):489-96. doi: 10.1007/s00405-010-1418-5. Epub 2010 Nov 27.
- Nanotechnology and nanomedicine are new and rapidly developing areas which are concerned with the utilisation of structures and devices, one billionth of a metre in scale and how their special properties may be utilised in the diagnosis and treatment of diseases. In otorhinolaryngology, there have b
- PMID 21113606
- From nanotechnology to nanomedicine: applications to cancer research.
- Seigneuric R, Markey L, Nuyten DS, Dubernet C, Evelo CT, Finot E, Garrido C.SourceDépartement Nanosciences, Laboratoire Interdisciplinaire Carnot de Bourgogne, CNRS-UMR 5209, 9, Avenue Alain Savary, BP 47870, 21078 DIJON Cedex, France. renaud.seigneuric@u-bourgogne.fr
- Current molecular medicine.Curr Mol Med.2010 Oct;10(7):640-52.
- Scientific advances have significantly improved the practice of medicine by providing objective and quantitative means for exploring the human body and disease states. These innovative technologies have already profoundly improved disease detection, imaging, treatment and patient follow-up. Today's
- PMID 20712588
- United States Government Accountability Office report on nanotechnology: nanomaterials are widely used in commerce, but EPA faces challenges in regulating risk.
- United States Government Accountability Office.AbstractNanotechnology involves the ability to control matter at the scale of a nanometer--one billionth of a meter. The world market for products that contain nanomaterials is expected to reach $2.6 trillion by 2015. In this context, the United States Government Accountability Office (GAO): (1) identified examples of current and potential uses of nanomaterials, (2) determined what is known about the potential human health and environmental risks from nanomaterials, (3) assessed actions the Environmental Protection Agency (EPA) has taken to better understand and regulate the risks posed by nanomaterials as well as its authorities to do so, and (4) identified approaches that other selected national authorities and U.S. states have taken to address the potential risks associated with nanomaterials. The GAO analyzed selected laws and regulations, reviewed information on the EPA's Nanoscale Materials Stewardship Program, and consulted with EPA officials and legal experts to obtain their perspectives on the EPA's authorities to regulate nanomaterials.
- International journal of occupational and environmental health.Int J Occup Environ Health.2010 Oct-Dec;16(4):525-39.
- Nanotechnology involves the ability to control matter at the scale of a nanometer--one billionth of a meter. The world market for products that contain nanomaterials is expected to reach $2.6 trillion by 2015. In this context, the United States Government Accountability Office (GAO): (1) identified
- PMID 21222394
Japanese Journal
- Advanced Optical Metrology Using Ultrashort Pulse Lasers
- 28 附子中の強心成分,Higenamineの分離及びその構造について
Related Links
- bil·lionth (bĭl′yənth) n. 1. The ordinal number matching the number one billion in a series. 2. One of a billion equal parts. bil′lionth adj. & adv. ... The shipment of our 10 billionth PIC microcontroller is a remarkable achievement, and ...
- British Dictionary definitions for billionth Expand billion / ˈbɪljən / noun (pl) -lions, -lion 1. one thousand million: it is written as 1 000 000 000 or 10 9 2. (formerly, in Britain) one million million: it is written as 1 000 000 000 000 or 10 ...
- This year, mBillionth set a new record with 348 nominations received across 10 categories.The list of Winners and Juror’s Mentions will be revealed on stage at the 7th mBillionth Grand Gala at Hotel Eros New Delhi, India, on July 23 ...
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