# Definitions for nonagonˈnɒn əˌgɒnnonagon

### Princeton's WordNetRate this definition:0.0 / 0 votes

1. nonagonnoun

a nine-sided polygon

### WiktionaryRate this definition:0.0 / 0 votes

1. nonagonnoun

A polygon with nine sides and nine angles.

### WikipediaRate this definition:0.0 / 0 votes

1. Nonagon

In geometry, a nonagon () or enneagon () is a nine-sided polygon or 9-gon. The name nonagon is a prefix hybrid formation, from Latin (nonus, "ninth" + gonon), used equivalently, attested already in the 16th century in French nonogone and in English from the 17th century. The name enneagon comes from Greek enneagonon (εννεα, "nine" + γωνον (from γωνία = "corner")), and is arguably more correct, though less common than "nonagon".

### ChatGPTRate this definition:0.0 / 0 votes

1. nonagon

A nonagon is a polygon with nine sides and nine angles. It can be regular, with all sides and angles being equal, or irregular, with different sides and angles.

### Webster DictionaryRate this definition:0.0 / 0 votes

1. Nonagonnoun

a figure or polygon having nine sides and nine angles

2. Etymology: [L. nonus ninth + Gr. angle.]

### WikidataRate this definition:5.0 / 1 vote

1. Nonagon

In geometry, a nonagon is a nine-sided regular polygon. The name "nonagon" is a prefix hybrid formation, from Latin, used equivalently, attested already in the 16th century in French nonogone and in English from the 17th century. The name "enneagon" comes from Greek enneagonon, and is arguably more correct, though somewhat less common. A regular nonagon has internal angles of 140°. The area of a regular nonagon of side length a is given by

### Chambers 20th Century DictionaryRate this definition:0.0 / 0 votes

1. Nonagon

non′a-gon, n. (math.) a plane figure having nine sides and nine angles. [L. novem, nine, nonus, ninth, gōnia, angle.]

### Numerology

1. Chaldean Numerology

The numerical value of nonagon in Chaldean Numerology is: 6

2. Pythagorean Numerology

The numerical value of nonagon in Pythagorean Numerology is: 8

## Translations for nonagon

### From our Multilingual Translation Dictionary

• নবভুজ
• enneàgon
• Neuneck, Nonagon
• eneágono, nonágono
• nonagone, nonagon
• מתושע
• nonagono, ennagono
• ノナゴン
• eneágono
• девятиуго́льник
• dokuzgen
• 九边形

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