- Stiffness or inflexibility.
- In psychiatry and clinical psychology, an aspect of personality characterized by a person's resistance to change.
- In neurology, one type of increase in muscle tone at rest; characterized by increased resistance to passive stretch, independent of velocity and symmetric about joints; increases with activation of corresponding muscles in the contralateral limb. Two basic types are cogwheel rigidity and lead-pipe rigidity.
[L. rigidus, rigid, inflexible]
See Also: nuchal rigidity
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