Dictionary

octangle en · NOUN

Pronunciation

• /ˈɑk.tæŋ.ɡ(ə)l/
• ŏkʹtăng-gl

Etymology

From oct- + angle.

Meanings

1. A geometric figure with eight corners, an octagon.
   • The angles of any two of the tetrahedra ABCD, A′B′C′D′, and OO′O″O‴ form the angles of a complete syngrammatic octangle whose syngrammatic points are the angles of the other tetrahedron […] 1853 May, Thomas Weddle, “On certain geometrical relations between a surface of the second degree and a tetrahedron whose edges touch the surface”, in The Cambridge and Dublin Mathematical Journal, volume 8, page 130:

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