tonus /tōˈnəs/ (medicine)

1. The normal elasticity of healthy muscle at rest, tonicity
2. Atonic spasm

• breastpins
• breastplate
• breastplates
• breastplough
• breastploughs
• breast pump
• breast pumps
• breastrail
• breastrails
• breasts
• breast screening
• breaststroke
• breaststrokes
• breastsummer
• breastsummers
• breast the tape
• breast wall
• breast walls
• breast wheel
• breast wheels
• breastwork
• breastworks
• breath
• breathable
• breathalyse