noun al·go·rism \ˈal-gə-ˌri-zəm\

Definition of algorism



  1. 1a :  the system of Arabic numerals b :  the art of calculating by means of nine figures and zero :  arithmetic

  2. 2 :  the art of calculating with any species of notation the algorism of fractions


\¦al-gə-ˌ¦riz-mik\ adjective

Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Origin and Etymology of algorism

Middle English augrim, algorisme, from Old French & Medieval Latin; Old French augorisme, from Medieval Latin algorismus, from Arabic al-khuwārizmi, after abu-Jaʽfar Mohammed ibn-Mūsa al-Khuwārizmi, flourished 825 a.d. Persian mathematician

First Known Use: 14th century

Seen and Heard

What made you want to look up algorism? Please tell us where you read or heard it (including the quote, if possible).


quaintly unconventional or refined

Get Word of the Day daily email!