from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The use of one's fingers to express numbers.

from the GNU version of the Collaborative International Dictionary of English

  • n. The art of numbering or counting by the fingers.

from The Century Dictionary and Cyclopedia

  • n. The art of counting or numbering on the fingers.


from Wiktionary, Creative Commons Attribution/Share-Alike License

From dactylo- + -nomy.


  • I especially enjoyed the the maths chapter, which includes topics like how to count to a million on your fingers I've tried dactylonomy before and how to estimate square roots in your head.

    Mind Hacks: Mind Performance Hacks


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  • I'm a dactylonomist

    January 8, 2018

  • Let warnings be loud and be clarion

    It invites financial despair again

    To trust our economy

    To the crude dactylonomy

    Of a rude short-fingered vulgarian.

    March 8, 2016

  • JM is an expert at dactylonomy but only up to ten!

    December 27, 2009