episternum /ep-i-stûrˈnəm/ (anatomy)

1. The interclavicle
2. The epiplastron
3. The presternum of mammals

episterˈnal adjective

• butterfly plaster
• butterfly screw
• butterfly screws
• butterfly stroke
• butterfly strokes
• butterfly valve
• butterfly valves
• butterfly weed
• butterfly weeds
• butterhead lettuce
• butterhead lettuces
• butter icing
• butterier
• butteries
• butteriest
• butterine
• butterines
• butteriness
• butterinesses
• buttering
• butter knife
• butter knives
• buttermilk
• butter muslin
• butternut