You know what it looks like… but what is it called?
TAKE THE QUIZair bearing
noun
: a bearing that uses pressurized air to eliminate contact and friction between the bearing and the surface of the object being supported or held in place
Air bearings are particularly effective for high rotational speeds and have run at up to 360,000 revs per minute …—
Frank Fahy, Air: The Excellent Canopy, 2009
Love words? Need even more definitions?
Merriam-Webster unabridged
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- Before we went to her house, Hannah told us her aunt was a flibbertigibbet.


Can you make 12 words with 7 letters?
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