# heptagonal

## English

### Etymology

Since 16th century, from heptagon +‎ -al.

### Pronunciation

• IPA(key): /hɛpˈtæɡ ə nl/

heptagonal (not comparable)

1. Having seven angles and sides.
2. (mathematics, of a number) Belonging to the sequence generated by the formula ${\displaystyle {\frac {5n^{2}-3n}{2}}}$ .

## Asturian

heptagonal (epicene, plural heptagonales)

1. heptagonal (having seven angles and sides)

## Catalan

### Etymology

From heptàgon +‎ -al.

### Pronunciation

heptagonal m or f (masculine and feminine plural heptagonals)

1. heptagonal

## French

### Pronunciation

•  Audio: (file)

heptagonal (feminine heptagonale, masculine plural heptagonaux, feminine plural heptagonales)

1. heptagonal

## Portuguese

### Pronunciation

• (Brazil) IPA(key): /ˌɛ.pi.ta.ɡoˈnaw/ [ˌɛ.pi.ta.ɡoˈnaʊ̯], /ˌɛp.ta.ɡoˈnaw/ [ˌɛp.ta.ɡoˈnaʊ̯]
• (Southern Brazil) IPA(key): /ˌɛp.ta.ɡoˈnaw/ [ˌɛp.ta.ɡoˈnaʊ̯], /ˌɛ.pi.ta.ɡoˈnaw/ [ˌɛ.pi.ta.ɡoˈnaʊ̯]

• (Portugal) IPA(key): /ˌɛ.ptɐ.ɡuˈnal/ [ˌɛ.ptɐ.ɣuˈnaɫ]
• (Southern Portugal) IPA(key): /ˌɛ.ptɐ.ɡuˈna.li/ [ˌɛ.ptɐ.ɣuˈna.li]

• Hyphenation: hep‧ta‧go‧nal

heptagonal m or f (plural heptagonais)

1. heptagonal (having seven angles and sides)
Synonym: heptágono

## Romanian

### Etymology

heptagonal m or n (feminine singular heptagonală, masculine plural heptagonali, feminine and neuter plural heptagonale)

1. heptagonal

## Spanish

### Pronunciation

• IPA(key): /ebtaɡoˈnal/ [eβ̞.t̪a.ɣ̞oˈnal]
• Rhymes: -al
• Syllabification: hep‧ta‧go‧nal