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Pleenok

A pleenok

A pleenok was a learning device used by Vulcans to train their infants in primary logic. It was a three dimensional puzzle in shape of a regular tetrahedron.

In 2378, Tuvok gave a pleenok as a gift at the baby shower held for B'Elanna Torres within a holodeck simulation ran by Seven of Nine. (VOY: "Human Error")

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