Examples of algebra on a chalkboard.

- The definition of algebra is a type of math that focuses on demonstrating the properties and relationships of abstract things in symbolic form.
Graphing, absolute value equations and scientific notation are each an example of a topic in algebra.

## algebra

noun

- a mathematical system using symbols, esp. letters, to generalize certain arithmetic operations and relationships (Ex.: x + y = x represents a unique relationship between x and y, and has an infinite number of examples, as 3 + 6 = 9)
- any of various symbolic mathematical systems having formal rules of operation, defined relationships, finite processes, etc.: Boolean
*algebra* - a textbook or treatise dealing with algebra

Origin of algebra

Middle English ; from Medieval Latin ; from Arabic*al-jabr*, the reunion of broken parts ; from

*al*, the +

*jabara*, to reunite

*Related Forms:*

- algebraist
noun

## algebra

noun

- A branch of mathematics in which symbols, usually letters of the alphabet, represent numbers or members of a specified set and are used to represent quantities and to express general relationships that hold for all members of the set.
- A set together with a pair of binary operations defined on the set. Usually, the set and the operations simultaneously form both a ring and a module.

Origin of algebra

Middle English,*bone-setting*, and Italian,

*algebra*, both from Medieval Latin, from Arabic

*al-jabr (wa-l-muqābala)*,

*the restoration (and the compensation), addition (and subtraction)*:

*al-*,

*the*+

*jabr*,

*bone-setting, restoration*(from

*jabara*,

*to set (bones), force, restore*; see

*gpr*in Semitic roots).

*Related Forms:*

**al′ge·bra′ist**noun

## algebra

Noun

(*countable and uncountable*, *plural* algebras)

- (uncountable, medicine, historical, rare) The surgical treatment of a dislocated or fractured bone. Also (countable): a dislocation or fracture.
- (uncountable, mathematics) A system for computation using letters or other symbols to represent numbers, with rules for manipulating these symbols.
- (uncountable, mathematics) The study of algebraic structures.
- (countable, mathematics) A universal algebra.
- (countable, algebra) An algebraic structure consisting of a module of a commutative ring along with an additional binary operation that is bilinear.
- (countable, set theory, analysis) A collection of subsets of a given set, such that this collection contains the empty set, and the collection is closed under unions and complements (thereby also under intersections and differences).
- (countable, mathematics) One of several other types of mathematical structure.
- (figuratively) A system or process, that is like algebra by substituting one thing for another, or in using signs, symbols, etc., to represent concepts or ideas.

Origin

From Medieval Latin, from Arabic word *الجبر* (al-jabr, “reunion, resetting of broken parts”) in the title of al-Khwarizmi's influential work *الكتاب المختصر في حساب الجبر والمقابلة* (al-kitāb al-muxtaṣar fī ḥisāb al-jabr wa-l-muqābala, “The Compendious Book on Calculation by Completion and Balancing”).