leakless

Jaworski was a definite sleeper, or at least that's the way it looks from outside his amazingly leakless operation.

(phonetically close to "but lau", which means "leakless?"

Leakless vapor-space valve controls unveiled.

Chevron also spent about $500,000 to install leakless valves and double-sealed pumps at its El Segundo refinery, which could prevent significant emissions of air contaminants.

A. David E. Sanger, a White House correspondent, responds: Every new administration vows to run a leakless ship, and eventually every administration has failed.

Instead of Henry J. Hyde, we had Peter Rodino, advised by both Democratic and Republican counsel, each with full access to the evidence Mr. Jaworski had obtained in leakless grand jury hearings.

Spurred by documentary photographs, the federal government stepped in in the 1930's and made Gee's Bend a model of the New Deal, reimagining the town and replacing skinned-pine log houses chinked with clay with "Roosevelt houses," as they are still called, equipped with leakless roofs, cast-iron stoves and other improvements.