- capable of sealing itself automatically or without the application of adhesive, glue, or moisture: a self-sealing automobile tire; self-sealing envelopes.
Origin of self-sealing
First recorded in 1920–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for self-sealing
With the self-sealing lock of the same resistant material, a mere pounding was nothing.Acid Bath
The self-sealing hull was thin magnesium, the outer shell periodically renewed as cosmic sand eroded it.Industrial Revolution
Poul William Anderson
If you can get the self-sealing bottles, such as pop or beer comes in, the work of putting up grape juice will be light.
Women everywhere should rise and call blessed he who invented the self-sealing jar.Dishes & Beverages of the Old South
Martha McCulloch Williams
Tom gave a yell of triumph and clamped the star point shut, then pushed a button to activate the self-sealing process.Tom Swift and The Visitor from Planet X
- (esp of an envelope) designed to become sealed with the application of pressure only