# Gross (unit)

In English and related languages, several terms involving the words "great" or "gross" (possibly, from French: *grosse* thick) relate to numbers involving multiples of exponents of twelve (dozen):

- A
**gross**refers to a group of 144 items (a dozen dozen or a square dozen).^{[1]}^{[2]} - A
**great gross**refers to a group of 1728 items (a dozen gross or a cubic dozen).^{[1]}^{[2]} - A
**small gross**^{[3]}or a**great hundred**^{[4]}refers to a group of 120 items (ten dozen).

A gross may be abbreviated as "gr" or "gro".

The continued use of these numbers in measurement and counting represents a continuation of the tradition of the duodecimal number system in everyday life^{[5]} and has encouraged groups such as the Duodecimal Society of America to advocate for a wider use of such a numbering system in place of decimal.^{[6]}^{[7]}

## References

- 1 2 Schwartzman, Steven (1996),
*The Words of Mathematics: An Etymological Dictionary of Mathematical Terms Used in English*, Mathematical Association of America, pp. 100–101, ISBN 9780883855119. - 1 2 Darling, David (2004),
*The Universal Book of Mathematics: From Abracadabra to Zeno's Paradoxes*, John Wiley & Sons, p. 140, ISBN 9780471270478. - ↑ Wright, Carroll Davidson (1910),
*The New Century Book of Facts: A Handbook of Ready Reference*, King-Richardson Company, p. 462. - ↑ Wells, David (1997),
*The Penguin Dictionary of Curious and Interesting Numbers*(3rd ed.), Penguin, p. 66, ISBN 9780140261493. - ↑ Gullberg, Jan (1997),
*Mathematics: From the Birth of Numbers*, W. W. Norton & Company, ISBN 9780393040029. - ↑ Dudley, Underwood (1996),
*Mathematical Cranks*, Cambridge University Press, p. 22, ISBN 9780883855072. - ↑ Bellos, Alex (2012-12-12), "Dozenalists of the world unite! Rise up against the tyranny of ten!",
*The Guardian*.

This article is issued from Wikipedia - version of the Thursday, February 11, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.