First Known Use: 1660
Dictionary
heptad
noun hep·tad \ˈhep-ˌtad\
Definition of HEPTAD
: a group of seven
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Origin of HEPTAD
Greek heptad-, heptas, from hepta
Rhymes with HEPTAD
Akkad, aoudad, Baghdad, Belgrade, Carlsbad, caudad, comrade, Conrad, crash pad, crawdad, doodad, dorsad, dryad, dyad, egad, farad, Flagstad, footpad, gonad, granddad, horn-mad, ironclad, keypad, launchpad, maenad, monad, mouse pad, Murad, naiad, nicad, nomad, NORAD, notepad, pentad, pleiad, postgrad, scratch pad, Sinbad, tetrad, touch pad, triclad
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