tétraèdre

Learned borrowing from Ancient Greek τετράεδρον (tetráedron, “triangle-based pyramid”), from τετράεδρος (tetráedros), from τετράς (tetrás, “four”) + ἕδρα (hédra, “seat”).

• IPA^(key): /te.tʁa.ɛdʁ/

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tétraèdre m (plural tétraèdres)

1. (geometry) tetrahedron (polyhedron with four faces)

   Hypernym: polyèdre

• “tétraèdre”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.