stiffnesses
/ˈstɪf.nə.sɪz/ · stiff·ness·es
noun
- Plural form of stiffness; multiple states or degrees of rigidity, inflexibility, or resistance to deformation. The engineer measured the stiffnesses of the three bridge components to ensure they met safety standards.
- Various instances of bodily or muscular tightness experienced by a person. After the marathon, the runner complained of different stiffnesses in his calves, hamstrings, and lower back.
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Antonyms
Did you know? Although "stiffnesses" is grammatically correct, it is rarely used in everyday language; engineers and physiotherapists are among the few professionals who regularly encounter the plural when discussing multiple measurements of rigidity.