Heptad

Heptad ('group of 7') or heptade may refer to:

• Heptad (chord), heptachord in music (set)
• Heptad (computing), a group of 7 bits in computing
• Heptad repeat, a structural motif in proteins
• L'Heptade, an album by Harmonium in 1976
• Sechtae, or "Heptads", an early Irish legal text comprising lists of seven (heptads)

See also

• Hexad (disambiguation) ('group of 6')
• Octad (disambiguation) ('group of 8')