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

• fermium
• fermiums
• ferms
• fern
• fernallies
• fernally
• fernbird
• fernbirds
• ferneries
• fernery
• fernier
• ferniest
• ferning
• fernings
• fernitickle
• ferniticle
• insociability
• insociable
• insofar
• in so far as
• insofar as
• insolate
• insolated
• insolates
• insolating