octachoron
(mathematics) A four-dimensional object analogous to a cube, constructed out of eight cubes.
(archaic) Any small, terrestrial invertebrate, usually an agricultural pest and having many legs and a hairy body. / A gelechiid moth, Dichomeris ligulella, destructive to fruit trees.
A saposin formed by cleavage of a disaposin or trisaposin
(Christianity) Any of the parish churches of Rome supplying a title to cardinal priests.
教授は学生が四次元の幾何学を視覚化できるように、黒板に立方体8個から成る四次元の立体（八胞体）を描いた。
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