bivalent /bī-vāˈlənt or bivˈə-lənt/

1. Having a valency of two (chem)
2. Relating to one of a pair of homologous chromosomes (also noun)

• knobbinesses
• knobble
• knobbled
• knobbles
• knobblier
• knobbliest
• knobbling
• knobbly
• knobby
• knobhead
• knobheads
• knobkerrie
• knobkerries
• knobs
• knobstick
• knobsticks
• knock
• knock about
• knockabout
• knockabouts
• knock all of a heap
• knock around
• knock back
• knock-back
• knock-backs