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From Wikipedia, the free encyclopedia

Strain can refer to:

  • Strain (biology), a variant of a plant, virus or bacterium; or an inbred animal used for experimental purposes
  • Strain (chemistry), a chemical stress of a molecule
  • Strain (mechanics) geometrical measure of deformation representing the relative displacement between particles in a material body, i.e. a measure of how much a given displacement differs locally from a rigid-body displacement.
  • Strain (injury), an injury to a muscle in which the muscle fibers tear as a result of over stretching
  • Strain (manga), manga written by Yoshiyuki Okamura, and illustrated by Ryoichi Ikegami
  • Strain (music), a series of musical phrases that create a distinct melody of a piece


See also

1911 encyclopedia

Up to date as of January 14, 2010

From LoveToKnow 1911

STRAIN (through 0. Fr. straindre, estraindre, mod. etreindre, from Lat. stringere, to draw tight, related to stress, stretch, string, &c.), to draw out, extend, stretch, especially with the idea of great effort or beyond measure or limit; hence, from the idea of pressure or constriction, to separate coarser matter or light solids from a liquid by pressure through a "strainer," which may be either a sieve or a colander (Lat. colare, to strain), a metal vessel with perforations in the bottom. Another type is the filter. Straining can also be effected by means of cloths, and the name strainer is used of a coarse open cloth usually of flax; a coarser cloth of a more open texture is technically known as "screw." For "strains" and "stresses" in physics see Mechanics; Elasticity and Strength Of Materials.

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