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Glossary of Pump Terms: Y


  • Y-axis: The vertical axis in the Cartesian coordinate system.
  • Yield point: The point of transition for a metal when it goes from an elastic material (returns to its starting shape) to a plastic material (does not return to its starting shape).
  • Young's modulus: The measure of the stiffness of an elastic material. Defined as the ratio of the stress along a particular axis over the strain along the same axis.