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octad

octad

9.0
A group of eight people or things
  • noun
  • /ˈɒktæd/
translation icon : octeto
  • The team was divided into units of eight, with each octad working independently.

Examples

  • Each section of the orchestra included an octad of musicians.

  • The scientist noted that the molecule formed an octad structure.

  • The group is an octad.

  • We need an octad for the project!

  • An octad can be formed by selecting eight distinct colors from the palette.

  • In a bowling game, the team scored an octad of strikes in succession.

  • The researchers studied an octad of ingredients that contributed to the recipe.

Synonyms

eight
vsoctad
1.0

The number after seven and before nine

also refers to a set or group of 8 things or people
ogdoad
vsoctad
  • Archaic
1 9.9

A group of eight things

is identical in meaning but uses a different word form
octet
vsoctad
  • Specialized
1 6.6

A group of eight things treated as one unit, often in computing

is broader, covering the number and groups beyond technical units
octonary
vsoctad
  • Archaic
9.9

The number eight

is wider, including use as a group or set of 8
octette
vsoctad
  • UK
8.6

A group of eight musicians or singers that perform together

is more general, applying to any set or number of 8 items

Surface Forms

octad singular
octads plural

Morphology

octad = oct + ad

The combining form 'oct-' clearly signals 'eight' for learners familiar with numeric combining forms (e.g., octagon, octet), but '-ad' is a less productive/group-forming suffix and the full word is somewhat rare and formal, so the meaning is only partly predictable for average learners.

Etymology

Octad comes from the Greek root octa- meaning 'eight', the same root you see in octagon and octave. So an octad is a group or set of eight people or things.