inner tube

/'inə'tju:b/

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Word: Inner Tube

Part of Speech: Noun

Definition: An inner tube is an inflatable rubber tube that fits inside the casing of a pneumatic tire. It helps hold air and provides cushioning for the tire, allowing vehicles like bicycles, cars, and trucks to move smoothly.

Usage Instructions:

• Inner tubes are typically used in tires for bicycles, motorcycles, and cars.
• It's important to check the inner tube for air pressure regularly to ensure safe travel.
• If a tire gets flat, it may be because the inner tube has a hole or is punctured.

Example Sentence:

• "When I got a flat tire on my bicycle, I had to replace the inner tube to get it working again."

Advanced Usage:

• In some contexts, "inner tube" can also refer to inflatable tubes used for recreational purposes, like floating down a river or at a water park.
• Example: "We spent the afternoon relaxing in our inner tubes on the river."

Word Variants:

• Inner Tubes (plural): Refers to more than one inner tube, often used when discussing multiple tires or different vehicles.
• Inner-tube (adjective): Sometimes used as a compound adjective, like in "inner-tube water ride."

Different Meaning:

• As mentioned, "inner tube" can also refer to the inflatable tubes used in water activities, which is a more recreational context not related to tires.

Synonyms:

• Tube
• Pneumatic tube (in the context of tires)

Idioms and Phrasal Verbs:

• There are no specific idioms or phrasal verbs directly associated with "inner tube," but you might hear phrases like "pump up the inner tube," meaning to inflate it with air.

Summary:

An inner tube is a crucial component of many types of tires, ensuring they function properly. It's important for both transportation and recreational activities.

Academic

Noun

1. an inflatable rubber tube that fits inside the casing of a pneumatic tire