English Explanatory Dictionary

gyrobifastigium

English dictionary entry

Meanings

noun
  1. A polyhedral solid formed by joining two face-regular triangular prisms along corresponding square faces, giving a quarter-turn to one prism. It is noted for being one of the few regular polyhedra that packs in three dimensions.

Word forms

gyrobifastigium gyrobifastigia gyrobifastigiums

Etymology

From gyro- + bi- + fastigium.

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