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Heptade vs Heptad - What's the difference?

heptade | heptad |

As nouns the difference between heptade and heptad

is that heptade is a sum or group of seven while heptad is a group of seven things.

heptade

English

Noun

(en noun)
  • A sum or group of seven.

    • heptad

    English

    Noun

    (en noun)
  • a group of seven things