Weep hole: hole through a solid revetment, bulkhead or seawall for relieving water pressure.

UNESCO: L O S S A R Y

Here on Casualty, paramedics save a patient with a punctured lung by relieving the pressure in his chest, a procedure known as needle decompression.

BBC

With their pressure-relieving memory foam ear pads, the X Headphones conform to each listener's unique ear shape, providing a highly effective acoustic seal.

ENGADGET: Sony and Simon Cowell intro X Factor-themed MDR-X10, celebrity headphones officially jump the shark for $300

The MDR-XB800 and MDR-XB600 headphones are designed for long-term wearing comfort with soft head cushions and seamless pressure-relieving ear cushions, providing a supportive, wrap-around feel.

ENGADGET: Sony ships new Extra Bass headphone lineup to the US, delivers that Direct Vibe to your brain