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

isotonicˈity noun

• kickbacks
• kickball
• kickballs
• kick boxer
• kick boxers
• kick boxing
• kickdown
• kickdowns
• kicked
• kicker
• kickers
• kickflip
• kickflipped
• kickflipping
• kickflips
• kickie-wickie
• kick in
• kicking
• kickings
• kicking strap
• kicking straps
• kick in the pants
• kick in the teeth
• kick off
• kick-off