heptahedron/heptəʹheedrən/ noun (pl heptahedrons heptahedra /-drə/)

• equate
• equation
• equator
• equatorial
• equerry
• equestrian
• equi-
• equiangular
• equidistant
• equilateral
• equilibrant
• equilibrate
• equilibria
• equilibrist
• equilibrium
• equine
• equinoctial
• equinoctial circle
• equinoctial line
• equinoctial point
• equinoctial year
• equinox
• equip
• equipage
• equipment