Poisson's ratio

or Poisson ratio


nounPhysics.
  1. the ratio, in an elastic body under longitudinal stress, of the transverse strain to the longitudinal strain.

Origin of Poisson's ratio

1
First recorded in 1925–30; see origin at Poisson distribution

Words Nearby Poisson's ratio

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British Dictionary definitions for Poisson's ratio

Poisson's ratio

noun
  1. a measure of the elastic properties of a material expressed as the ratio of the fractional contraction in breadth to the fractional increase in length when the material is stretched: Symbol: μ, ν

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