leakproof

comparative more leakproof · superlative most leakproof · alternative leak-proof

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

   1967, Edward Locker Delmar-Morgan, Maintenance of Inboard Engines, Newnes (1967), p. 115, "There are two subdivisions in the flashlight dry cell range, the ordinary cheap one and the better-quality leakproof cell."

   2 more examples

   1904, Institution of Mining and Metallurgy (Great Britain), Bulletin, Institution of Mining and Metallurgy (Great Britain) (1904), p. 22, "In mining work difficult laying conditions, limited space, and movements of the ground, all combine to make the installation of a leakproof main with ordinary joints a very difficult matter."

   1929, Victor Wilfred Pagé, Modern Aviation Engines: design-construction-operation and repair, […], Norman W. Henley Publishing Company (1929), p. 1589, "Leakproof tanks shall be provided on all airplanes for service use unless the tanks are completely protected by armor."

present singular third person leakproofs · participle present leakproofing · participle past leakproofed · past leakproofed · alternative leak-proof

1. transitiveTo make resistant to leakage.