scalénoèdre

OBS: (...) le ""scalénoèdre"" [est] composé de douze triangles scalènes, six supérieurs et six inférieurs, avec des arêtes communes en zigzag (...)

OBS: This form consists of twelve scalene triangular faces corresponding in position to alternate ""pairs"" of faces of a dihexagonal dipyramid. (...) The scalenohedron is differentiated from the dipyramid by the zigzag appearance of the middle edges.