title: Parallelism
text: # 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
  