air bubble
10
1.9
- noun
- /ɛr ˈbʌbəl/
- Air bubbles formed in the air bubble cement can weaken the final structure.
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Watch on YouTubePeople think that the air bubbles shown in the video, that's cavitation.
- People think that the air bubbles shown in the video, that's cavitation.
- They'll say I can't pop the air bubble by myself.
Examples
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Air bubbles in the blood.
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Make sure you don't allow any air bubbles in.
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You could see air bubbles deep inside, as if it were badly made glass.
Fiction book (1991) -
There were pipes running out of it, and air bubbles came from some of them.
Fiction book (2001) -
I didn't actually hear a pop, but the air bubble is now flat.
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That way you can avoid air bubbles and wrinkles.
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The cave was tucked away in what had once been an air bubble in the flow.
Fiction book (2000) -
The barrel actually saved her life, forming an air bubble preventing her from drowning.
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Numerous pits formed by air bubbles can be observed in the bronze around the letters.
Academic text (2012) -
Not wanting to excite my heart, I began to count the little air bubbles in my champagne glass.
Fiction book (1996)
Synonyms
296
1.0
A small round pocket of air in a liquid
How Big
10
1.9
296
1.0
Surface Forms
Morphology
The meaning 'a small pocket of air trapped within a liquid or solid' is directly and transparently derived from combining 'air' (the gas) with 'bubble' (a pocket of gas). This compositional, cross-linguistically common noun–noun compound follows standard English modifier patterns and would be immediately understandable to a B1 learner who knows both constituents.
Etymology
The noun air bubble gives a simple image: air inside a small round bubble, like a tiny balloon trapped in water or glass, so it means 'a small pocket of air trapped in a liquid or solid'.