Octagonal

//ɑkˈtæɡənəl// adj

adj ·Rare ·Advanced level

Definitions

Adjective
  1. 1
    Shaped like an octagon, in having eight sides and eight angles. not-comparable

    "Near Smeinogorsk an octagonal tumulus has been found containing the corpse of a horse near a rectangular one with a human corpse, both within stone circles."

Adjective
  1. 1
    of or relating to or shaped like an octagon wordnet

Synonyms

All synonyms
decagonaldodecagonaldodecahedraleightfoldeighthheptagonal

Example

More examples

"At the convocation, all the faculty and deans wore their doctoral regalia and octagonal hats."

Etymology

From octagon + -al.

Related phrases

semi-octagonal

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.