octagonal

• octogonal (obsolete)

From octagon +‎ -al.

• enPR: ŏk-tăgʹə-nl, IPA^(key): /ɑkˈtæɡ.ə.n(ə)l/

• Audio (Canada):

  (file)

octagonal (not comparable)

1. (geometry) Shaped like an octagon, in having eight sides and eight angles.
   • 1985 April 4, Daryln Brewer, “HELPFUL HARDWARE; AN ARRAY OF SUNDIALS”, in The New York Times‎^[1]:

     The sundials range in shape from octagonal to the usual round. Prices range from $75 to $375.

• octagonally
• semi-octagonal

• octactinal

From octàgon +‎ -al.

• Rhymes: -al

octagonal m or f (masculine and feminine plural octagonals)

1. octagonal

From octágono +‎ -al.

• IPA^(key): /oɡtaɡoˈnal/ [oɣ̞.t̪a.ɣ̞oˈnal]
• Rhymes: -al
• Syllabification: oc‧ta‧go‧nal

octagonal m or f (masculine and feminine plural octagonales)

1. octagonal

• octogonal

• “octagonal”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.7, Royal Spanish Academy [Spanish: Real Academia Española], 2023 November 28