octangle
English
Etymology
oct- + angle
Pronunciation
- enPR: ŏkʹtăng-gl, IPA(key): /ˈɑk.tæŋ.ɡ(ə)l/
Noun
octangle (plural octangles)
- A geometric figure with eight corners, an octagon.
- 1853 May, Weddle, Thomas, “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:
- 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 […]
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Anagrams
- lactogen