Definition of hexad in English:

hexad

Line breaks: hexad
Pronunciation: /ˈhɛksad
 
/

noun

technical
A group or set of six: each segment, down to the tiniest hexad of cilia, is practically identical in shape
More example sentences
  • These axes are, respectively, diads, triads, tetrads, and hexads.
  • Unfortunately there are not hexads or octads in nature.
  • The duodecad can be considered as two hexads, upper and lower; as three tetrads, working in dynamic cooperation; or as four triads in a synthesis of immanence and transcendence.

Origin

mid 17th century (denoting a series of six numbers): from Greek hexas, hexad-, from hex 'six'.

Definition of hexad in:

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