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

• Pennsylvania Dutch
• penny
• penny-a-line
• penny-a-liner
• penny-a-linerism
• penny ante
• penny-ante
• penny antes
• penny arcade
• penny arcades
• penny-bank
• penny-banks
• penny black
• penny blacks
• penny-bun
• penny-bun mushroom
• penny-bun mushrooms
• penny-buns
• pennycress
• pennycresses
• penny-dog
• penny-dogs
• penny dreadful
• penny-farthing
• penny-farthings