Definitions

parallel

uneven parallel bars

Event in women's gymnastics in which a pair of wooden bars supported horizontally above the floor at different heights is used to perform acrobatic feats. The apparatus allows a great variety of movements, but hanging and swinging exercises predominate. It became an Olympic event in 1936. Seealso parallel bars.

Learn more about uneven parallel bars with a free trial on Britannica.com.

Evolution of geographically separated groups in such a way that they show physical resemblances. A notable example is the similarity between the marsupial mammals of Australia and placental mammals elsewhere, which have arrived at remarkably similar forms through the separate courses of their evolution.

Learn more about parallel evolution with a free trial on Britannica.com.

Paul Hamm (U.S.) competing on the parallel bars during the 2004 Olympic Games in Athens.

Event in men's gymnastics in which a pair of wooden bars supported horizontally above the floor at the same height is used to perform acrobatic feats. Competitors combine swings and vaults with stationary positions requiring strength and balance, though swings and vaults must predominate. It has been included as an Olympic gymnastics event since the modern games began in 1896. Seealso uneven parallel bars.

Learn more about parallel bars with a free trial on Britannica.com.

Parallel may refer to:

Mathematics and science

Proper name

Music

  • Parallel key, the minor (or major) key of a major (or minor) key with the same tonic
  • Harmonic parallelism, also known as "harmonic planing" or "parallel voice leading"
  • Parallel fifths, the concurrence of successive intervals of a perfect fifth between two voices

Other uses

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