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boundary layer

noun

, Physics.
  1. the portion of a fluid flowing past a body that is in the immediate vicinity of the body and that has a reduced flow due to the forces of adhesion and viscosity.

boundary layer

noun

  1. the layer of fluid closest to the surface of a solid past which the fluid flows: it has a lower rate of flow than the bulk of the fluid because of its adhesion to the solid

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Word History and Origins

Origin of boundary layer1

First recorded in 1920–25

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