View source for Heptagonal

==English==

===Etymology===
Since 16th century, from {{suffix|en|heptagon|al}}.

===Pronunciation===
* {{IPA|en|/hɛpˈtæɡ ə nl/}}
* {{audio|en|En-ca-heptagonal.oga|a=Canada}}

===Adjective===
{{en-adj|-}}

# Having seven angles and sides.
# {{lb|en|math|of a number}} Belonging to the sequence generated by the formula <math>\frac{5n^2 - 3n}{2}</math>.

====Synonyms====
* {{l|en|septagonal}}

====Related terms====
* {{l|en|heptagon}}
* {{l|en|septangle}}
* {{l|en|septangular}}

====Translations====
{{trans-top|Having seven angles and sides}}
* Asturian: {{t|ast|heptagonal}}, {{t|ast|heptágonu}}
* Bengali: {{t|bn|সপ্তভুজাকৃতি}}
* Catalan: {{t+|ca|heptagonal}}
* Dutch: {{t+|nl|zevenhoekig}}
* Esperanto: {{t|eo|seplatera}}, {{t|eo|sepangula}}
* French: {{t+|fr|heptagone}}, {{t+|fr|heptagonal}}
* Galician: {{t|gl|heptagonal}}
* Georgian: {{t|ka|შვიდკუთხა}}
* German: {{t+|de|siebeneckig}}
* Greek: {{t|el|επτάγωνος}}, {{t|el|εφτάγωνος}}
* Hebrew: {{t|he|משובע|m|tr=meshubá}}, {{t|he|משובעת|f|tr=meshubá`at}}
* Icelandic: {{t|is|sjöhyrndur|m}}
* Italian: {{t+|it|ettagono}}, {{t|it|ettagonale}}
* Polish: {{t|pl|siedmiokątny}}
* Portuguese: {{t|pt|heptagonal}}, {{t+|pt|heptágono}}
* Russian: {{t+|ru|семиугольный}}
* Scottish Gaelic: {{t|gd|seachd-shliosach}}
* Serbo-Croatian: {{t|sh|sedmougaoni}}, {{t|sh|sedmokrak}}
* Slovak: {{t|sk|sedemuholníkový}}
* Spanish: {{t+|es|heptagonal}}, {{t+|es|heptágono}}
* Tagalog: {{t|tl|pitsihain}}
* Ukrainian: {{t|uk|семику́тний}}
{{trans-bottom}}

===Anagrams===
* {{anagrams|en|a=aaeghlnopt|paleognath}}

{{C|en|Seven}}

==Asturian==

===Adjective===
{{ast-adj-mf|pl=heptagonales}}

# {{l|en|heptagonal}} {{gloss|having seven angles and sides}}

====Synonyms====
* {{l|ast|heptágonu}}

==Catalan==

===Etymology===
From {{suffix|ca|heptàgon|al}}.

===Pronunciation===
* {{ca-IPA}}<!-- no secondary stress per GDLC -->

===Adjective===
{{ca-adj}}

# {{l|en|heptagonal}}

==French==

===Pronunciation===
* {{audio|fr|LL-Q150 (fra)-WikiLucas00-heptagonal.wav}}

===Adjective===
{{fr-adj}}

# {{l|en|heptagonal}}

===Further reading===
* {{R:fr:TLFi}}

==Portuguese==

===Pronunciation===
{{pt-IPA|hépi^tagonál}}
* {{hyph|pt|hep|ta|go|nal}}

===Adjective===
{{pt-adj}}

# {{l|en|heptagonal}} {{gloss|having seven angles and sides}}
#: {{syn|pt|heptágono}}

==Romanian==

===Etymology===
{{bor+|ro|fr|heptagonal}}. {{surf|ro|heptagon|-al}}.

===Adjective===
{{ro-adj}}

# {{l|en|heptagonal}}

====Declension====
{{ro-decl-adj}}

==Spanish==

===Pronunciation===
{{es-pr}}

===Adjective===
{{es-adj}}

# {{l|en|heptagonal}}
#: {{syn|es|heptágono}}

===Further reading===
* {{R:es:DRAE}}