lead-pipe rigidity

muscular rigidity that produces a smooth, steady resistance to passive movement of the limbs of people with parkinsonism or cerebral palsy. Compare cogwheel rigidity.

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Psychology term of the day

May 8th 2024

PI

1. abbreviation for prescribing information. See labeling.

2. abbreviation for proactive interference.

3. abbreviation for progressive interval. See progressive-interval schedule.