Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. So constructed or contrived as to prevent leaks or leakage.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Resistant to leaks; hermetic, sound; as of a dry cell battery.

from the GNU version of the Collaborative International Dictionary of English

  • adj. having no leaks.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. not subject to leaks

Etymologies

leak +‎ -proof (Wiktionary)

Examples

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