Definition:Octad
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Definition
An octad is a set or tuple which has exactly $8$ elements.
Also known as
The term ogdoad is sometimes seen for octad.
Linguistic Note
The word octad derives from the Classical Greek ὀκτά- (oktá-) and ὀκτώ (oktṓ), meaning eight.
Sources
- 1989: Ephraim J. Borowski and Jonathan M. Borwein: Dictionary of Mathematics ... (previous) ... (next): octad or ogdoad