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

• Tupí
• tuque
• tuques
• tu quoque
• uncles
• Uncle Sam
• uncleship
• uncleships
• Uncle Tom
• unclew
• unclewed
• unclewing
• unclews
• unclimbable
• unclimbed
• uncling
• unclipped
• unclipt
• uncloak
• uncloaked
• uncloaking
• uncloaks
• unclog
• unclogged
• unclogging