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[soo m-uh, suhm-uh]
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noun, plural sum·mae [soo m-ahy, suhm-ee] /ˈsʊm aɪ, ˈsʌm i/, sum·mas.
  1. a comprehensive work or series of works covering, synthesizing, or summarizing a particular field or subject.
  2. a work or series of works that is a summary of all human knowledge.
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Origin of summa

1400–50; late Middle English < Medieval Latin; Latin: sum
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for summa


noun plural -mae (-miː)
  1. medieval Christianity theol a compendium of theology, philosophy, or canon law, or sometimes of all three together. The Summa Theologica of St Thomas Aquinas, written between 1265 and 1274, was the most famous of all such compendia
  2. rare a comprehensive work or survey
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Word Origin

C15: from Latin: sum 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012