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

• injection string
• injection strings
• injective
• injector
• injectors
• injects
• injellied
• injellies
• injelly
• injellying
• injera
• injeras
• injoint
• injointed
• injointing
• injoints
• in-joke
• in-jokes
• injudicial
• injudicially
• injudicious
• injudiciously
• injudiciousness
• injudiciousnesses
• Injun