(of an automobile tire) constructed so as not to deflate completely after a puncture so that a motorist can still drive the vehicle for some distance.

1945–50 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Example sentences
From fuel injection to run-flat tires and even hybrids, the auto industry has been there, done that.
They want to sell me run-flat tires with a change to snow tires in the fall.
Run-flat capability is achieved by reinforcing the sidewalls so that the sidewalls can carry the entire load applied to the tire.
Next, is a tire with a section cut out of it, showing hardened run-flat inserts underneath the rubber.
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