álgebra

See also: algebra, Algebra, àlgebra, algebrā, algebră, and alġebra

Portuguese

Etymology

From Arabic الْجَبْر (al-jabr), through Latin algebra.

Pronunciation

 

• (Brazil) IPA^(key): /ˈaw.ʒe.bɾɐ/ [ˈaʊ̯.ʒe.bɾɐ]

• (Brazil) IPA^(key): /ˈaw.ʒe.bɾɐ/ [ˈaʊ̯.ʒe.bɾɐ]
  • (Southern Brazil) IPA^(key): /ˈaw.ʒe.bɾa/ [ˈaʊ̯.ʒe.bɾa]

• (Portugal) IPA^(key): /ˈal.ʒɨ.bɾɐ/ [ˈaɫ.ʒɨ.βɾɐ]

• Rhymes: -awʒebɾɐ, -alʒɨbɾɐ
• Hyphenation: ál‧ge‧bra

Noun

álgebra f (plural álgebras)

1. algebra
   1. (mathematics) study of formal manipulations of equations, with the aim of solving certain problems (or the equations themselves)
   2. (mathematics) set of unary and binary operations related to each other by certain properties
   3. compendium of this discipline
2. (obsolete) art of restoring dislocated bones

Derived terms

• algébrico

 

Spanish

Etymology

From Arabic الجبر (al-jabr, “reunion, resetting of broken parts”), used in the title of al-Khwarizmi’s influential work عِلْم اَلْجَبْر وَالْمُقَابَلَة (ʕilm al-jabr wālmuqābala, “the science of restoration and equating like with like”).

Pronunciation

• IPA^(key): /ˈalxebɾa/ [ˈal.xe.β̞ɾa]

• Audio (Colombia):

  (file)

• Rhymes: -alxebɾa
• Syllabification: ál‧ge‧bra

Noun

álgebra f (plural álgebras)

1. algebra

Usage notes

• Feminine nouns beginning with stressed /ˈa/ like álgebra take the singular definite article el (otherwise reserved for masculine nouns) instead of the usual la: el álgebra. This includes the contracted forms al and del (instead of a la and de la, respectively): al álgebra, del álgebra.

These nouns also usually take the indefinite article un that is otherwise used with masculine nouns (although the standard feminine form una is also permitted): un álgebra or una álgebra. The same is true with determiners algún/alguna and ningún/ninguna, as well as for numerals ending with 1 (e.g., veintiún/veintiuna).

However, if another word intervenes between the article and the noun, the usual feminine singular articles and determiners (la, una etc.) must be used: la mejor álgebra, una buena álgebra.

• If an adjective follows the noun, it must agree with the noun's gender regardless of the article used: el álgebra única, un(a) álgebra buena.
• In the plural, the usual feminine singular articles and determiners (las, unas etc.) are always used.

Derived terms

• álgebra abstracta
• álgebra lineal
• algebraico
• algebrista

 

Further reading

• “álgebra”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8, Royal Spanish Academy [Spanish: Real Academia Española], 2024 December 10