ion pump

1. a protein molecule that carries out active transport of ions across a cell membrane. See also sodium pump.

2. a type of vacuum pump that turns gases into solids to remove them from an environment.

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Psychology term of the day

January 23rd 2025

negative recency

in recalling a list of items, the tendency to recall fewer of the final items of the list than the middle and early items. Negative recency contrasts with the enhanced recall of final items seen in the recency effect. Also called negative recency effect