heptachlor epoxide heptad heptad heptadecanoic acid heptads heptad repeat heptagon heptagon heptagonal heptagonal
| heptagons heptagynia heptagynous heptahedron heptamerous heptameter (current term) heptameters heptaminol heptanal heptandria
| heptandrous heptane heptane heptanes heptanes heptanoates heptanoic acids heptanol heptapeptide heptaphyllous
|