- 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