algebras

noun

1. 1.A system for computation using letters or other symbols to represent numbers, with rules for manipulating these symbols.
2. 2.The surgical treatment of a dislocated or fractured bone. Also : a dislocation or fracture.
3. 3.The study of algebraic structures.
4. 4.A universal algebra.
5. 5.An algebraic structure consisting of a module over a commutative ring (or a vector space over a field) along with an additional binary operation that is bilinear over module (or vector) addition and scalar multiplication.