dyad /dīˈad/

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

• pebbled
• pebbledash
• pebbledashed
• pebbledashes
• pebbledashing
• pebble-glasses
• pebble-powder
• pebbles
• pebble-stone
• pebble-stones
• pebble-ware
• pebblier
• pebbliest
• pebbling
• pebblings
• pebbly
• pec
• PEC
• pecan
• pecan nut
• pecans
• pecan tree
• pecan trees
• peccabilities
• peccability