isotonic /ī-sō-tonˈik/

1. Having the same tone, tension or osmotic pressure
2. (of muscular contraction) shortening the muscle fibres and moving a joint
3. (of an energy drink) containing salts and minerals of the same concentration as in the body

• butlerages
• butlered
• butleries
• butlering
• butlers
• butlership
• butlerships
• butler's pantry
• butlery
• butment
• buts
• butt
• butt-dial
• butt-dialed
• butt-dialing
• butt-dialled
• butt-dialling
• butt-dials
• butte
• butted
• butted joint
• butted joints
• butt-end
• butt-ends
• butter