Definition of algebra noun from the Oxford Advanced Learner's Dictionary

 

algebra

 noun
noun
BrE BrE//ˈældʒɪbrə//
 
; NAmE NAmE//ˈældʒɪbrə//
 
[uncountable] Mathematical terminology, Types of mathematics
 
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a type of mathematics in which letters and symbols are used to represent quantities Wordfinderalgebra, arithmetic, calculus, equation, geometry, logarithm, maths, numeracy, problem, trigonometry See related entries: Mathematical terminology, Types of mathematics Word Origin late Middle English: from Italian, Spanish, and medieval Latin, from Arabic al-jabr ‘the reunion of broken parts’, ‘bone-setting’, from jabara ‘reunite, restore’. The original sense, ‘the surgical treatment of fractures’, probably came via Spanish; the mathematical sense comes from the title of a book, ‘ilm al-jabr wa'l-muqābala ‘the science of restoring what is missing and equating like with like’, by the mathematician al-K̲wārizmī (see algorithm).
See the Oxford Advanced American Dictionary entry: algebra