pickerel/ʹpik(ə)rəl/ noun (pl pickerels collectively pickerel)

• butterball
• butter bean
• butterbur
• buttercream
• buttercup
• butterfat
• butterfingered
• butterfingers
• butterfish
• butterfly
• butterfly effect
• butterfly fish
• butterfly nut
• butterfly valve
• butter icing
• buttermilk
• butter muslin
• butternut
• butternut squash
• butterscotch
• butter up
• butterwort
• buttery
• buttie
• butt in