Parallelism may refer to: *

Angle of parallelism In hyperbolic geometry, angle of parallelism \Pi(a) is the angle at the non-right angle vertex of a right hyperbolic triangle having two limiting parallel, asymptotic parallel sides. The angle depends on the segment length ''a'' between the ri ...

, in hyperbolic geometry, the angle at one vertex of a right hyperbolic triangle that has two hyperparallel sides *

Axial parallelism Axial parallelism (also called gyroscopic stiffness, inertia or rigidity, or "rigidity in space") is the characteristic of a rotating body in which the direction of the axis of rotation around a fixed axis, rotation remains fixed as the object mo ...

, 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 Parallel computing is a type of computing, computation in which many calculations or Process (computing), processes are carried out simultaneously. Large problems can often be divided into smaller ones, which can then be solved at the same time. ...

, the simultaneous execution on multiple processors of different parts of a program ** In the

analysis of parallel algorithms In computer science, analysis of parallel algorithms is the process of finding the computational complexity of algorithms executed in parallel – the amount of time, storage, or other resources needed to execute them. In many respects, analysis ...

, the maximum possible speedup of a computation *

Parallel evolution Parallel evolution is the similar development of a trait in distinct species that are not closely related, but share a similar original trait in response to similar evolutionary pressure.Zhang, J. and Kumar, S. 1997Detection of convergent and pa ...

, the independent emergence of a similar trait in different unrelated species *

Parallel (geometry) In geometry, parallel lines are coplanar infinite straight line (geometry), lines that do not intersecting lines, intersect at any point. Parallel planes are plane (geometry), planes in the same three-dimensional space that never meet. ''Paral ...

, the property of parallel lines *

Parallelism (grammar) In grammar, parallelism, also known as parallel structure or parallel construction, is a balance within one or more sentences of similar phrases or clauses that have the same grammatical structure. The application of parallelism affects readability ...

, a balance of two or more similar words, phrases, or clauses *

Parallelism (rhetoric) Parallelism (or thought rhyme) is a rhetorical device that compounds words or phrases that have equivalent meanings so as to create a definite pattern. This structure is particularly effective when "specifying or enumerating pairs or series of like ...

, the use of similar ideas or phrases for rhetorical effect *

Psychophysical parallelism In the philosophy of mind, psychophysical parallelism (or simply parallelism) is the theory that mental and bodily events are perfectly coordinated, without any causal interaction between them. As such, it affirms the correlation of mental and bod ...

, the theory that the conscious and nervous processes vary concomitantly *

Parallel harmony In music, parallel harmony, also known as harmonic parallelism, harmonic planing or parallel voice leading, is the Parallel motion (music), parallel movement of two or more melodies (see voice leading). Effects When all voices between chords mov ...

/ doubling, or harmonic parallelism, in music

See also