Definition, Meaning & Synonyms
ennea
noun
/ˈɛniə/
Definition
In mathematics, ‘ennea’ is a prefix referring to the number nine.
Examples
- In an enneagon, there are nine sides and nine angles.
- The enneadic numerical system can be seen in various ancient cultures.
Meaning
The term comes from the Greek word for nine (εννέα), and is used in various contexts such as geometry or in describing the nine-fold nature of a particular concept.
Synonyms
- nine
- nonagon (when referring specifically to the nine-sided polygon)
