Word Meaning

heptad definition and meaning

A combining form from Gr. "epta`, seven.
n. An atom which has a valence of seven, and which can be theoretically combined with, substituted for, or replaced by, seven monad atoms or radicals; as, iodine is a heptad in iodic acid. Also used as an adjective.

Crossword clues for heptad

- Group of seven
- Groups of seven
- Set of seven