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Definition of octagonal :
Having eight sides and eight angles.
Synonyms:
five or more (part of speech: adjective)
hexagonal, octad, septuple, decennary, kilo, trillion, sexennial, dozen, centenary, septennial, thousand, heptagonal, hexahedral, billion, hexadic, sextuple, sevenfold, sixfold, million, jillion
Usage examples:
- It consisted of a great conical roof supported on an octagonal frame about twelve feet high.
- The first was completed in 1848, an octagonal tower, set on wrought- iron piles extending five feet into the rock. - "American Merchant Ships and Sailors", Willis J. Abbot.
- Outside it is octagonal, but the interior is round with a winding staircase rising to the top leaving the middle space void like a well, while on every fourth step there are columns with lame arches, which follow the curve of the building. - "The Lives of the Painters, Sculptors & Architects, Volume 1 (of 8)", Giorgio Vasari.
