tetrahedron
Relating to Laurussia.
Excessive orthokeratosis
Alternative spelling of preemptive
(geometry) A polyhedron with four faces; the regular tetrahedron, the faces of which are equal equilateral triangles, is one of the Platonic solids.
その作家は薄い真鍮線で繊細な四面体を作り、ギャラリーの床の上に吊り下げた。
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DiQt
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