dyad /dīˈad/

1. A pair of units treated as one
2. A bivalent atom, radical, or element (chem)

dyadˈic adjective

• elixir of vitriol
• elixirs
• Elizabethan
• Elizabethan architecture
• Elizabethanism
• elk
• elkhorn fern
• elkhorn ferns
• elkhound
• elkhounds
• elks
• ell
• ellagic
• ellipse
• ellipses
• ellipsis
• ellipsograph
• ellipsographs
• ellipsoid
• ellipsoidal
• ellipsoids
• elliptic
• elliptical
• elliptically
• elliptic geometry