Definition, Meaning & Synonyms

inner-tube

noun
/ˈɪnər tjuːb/
Definition
A rubber or inflatable tube that is fitted inside a tire or used as a floatation device.
Examples
  • She had to replace the inner-tube of her bicycle before the trip.
  • They floated down the river on inner-tubes during summer.
Meaning
The inner-tube is commonly used to provide air to tires or as a buoyancy aid in water activities.
Synonyms
  • float
  • tube
  • bladder