In English and related languages, several terms involving the words "great" or "gross" (possibly, from French: grosse thick) relate to numbers involving multiples of twelve (a dozen):
- A gross refers to a group of 144 items (a dozen dozen).
- A great gross refers to a group of 1728 items (a dozen gross).
- A small gross or a great hundred refers to a group of 120 items (ten dozen).
A gross may be abbreviatied as "gr" or "gro".
The continued use of these numbers in measurement and counting represents a holdover of the duodecimal number system in modern usage 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.
- ^ a b 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, http://books.google.com/books?id=SRw4PevE4zUC&pg=PA10.
- ^ a b Darling, David (2004), The Universal Book of Mathematics: From Abracadabra to Zeno's Paradoxes, John Wiley & Sons, p. 140, ISBN 9780471270478, http://books.google.com/books?id=nnpChqstvg0C&pg=PA140.
- ^ Wright, Carroll Davidson (1910), The New Century Book of Facts: A Handbook of Ready Reference, King-Richardson Company, p. 462, http://books.google.com/books?id=JnBMAAAAMAAJ&pg=PA462.
- ^ Wells, David (1997), The Penguin Dictionary of Curious and Interesting Numbers (3rd ed.), Penguin, p. 66, ISBN 9780140261493, http://books.google.com/books?id=kQRPkTkk_VIC&pg=PA66.
- ^ 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, http://books.google.com/books?id=HqeoWPsIH6EC&pg=PA23&lpg=PA22.
- ^ Bellos, Alex (12/12/12), "Dozenalists of the world unite! Rise up against the tyranny of ten!", The Guardian, http://www.guardian.co.uk/science/alexs-adventures-in-numberland/2012/dec/12/dozenalists-world-unite-tyranny-ten.