Parallelism
# Parallelism

Parallelism may refer to:

* Angle of parallelism, in hyperbolic geometry, the angle at one vertex of a right hyperbolic triangle that has two hyperparallel sides
* Axial parallelism, a type of motion characteristic of a gyroscope and astronomical bodies
* Conscious parallelism or also tacit parallelism, price-fixing between competitors that occurs without any communication between the parties
* Parallel computing, the simultaneous execution on multiple processors of different parts of a program
   * In the analysis of parallel algorithms, the maximum possible speedup of a computation
* Parallel evolution, the independent emergence of a similar trait in different unrelated species
* Parallel (geometry), the property of parallel lines
* Parallelism (grammar), a balance of two or more similar words, phrases, or clauses
* Parallelism (rhetoric), the chief rhetorical device of Biblical poetry in Hebrew
* Psychophysical parallelism, the theory that the conscious and nervous processes vary concomitantly
* Parallel harmony/doubling, or harmonic parallelism, in music
