Definition of octad in English:

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octad

Pronunciation: /ˈäktad/

noun

technical
A group or set of eight.
Example sentences
  • After meiosis, the four meiotic products undergo an additional mitotic division to yield eight haploid nuclei, which differentiate into an octad of eight ascospores.
  • In this case, the first postmeiotic cells deriving from the spores have been separated to yield octads composed of four pairs of colonies deriving from a single meiosis.
  • In these cases, molecular analysis was performed on only four members of the octad.

Origin

Mid 19th century: via late Latin from Greek oktas, oktad-, from oktō 'eight'.

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