shear stability
Technical term used in materials science, fluid mechanics, and engineering to describe a substance's resistance to deformation under shear stress.
This lubricant has high shear stability, so its viscosity is less likely to drop even at high temperatures.
Compound of 剪断 (せんだん, 'shear') and 安定性 (あんていせい, 'stability'). The exact historical derivation is uncertain; the spelling is conventionally associated with the technical meaning.