The plural form of hexad; multiple groups or sets of six things.
From Greek 'hex-' (six) + '-ad' (a group) + '-es' (plural). This is the standard plural form used in mathematics, philosophy, and science to refer to multiple hexadic groupings.
In ancient number theory, mathematicians studied hexades as complete units—six was considered the first 'perfect number,' which influenced how philosophers thought about the structure of the universe.
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