Definition of pinhole in English:



  • A very small hole.

    • ‘‘It was as if the earth was a black light bulb with pinholes in it and green lasers coming out: the Earth was on fire,’ he said.’
    • ‘Long streaks of bright blue grew from the many pinholes in the stone, and the red hair across the earth climbed to brush his elbows.’
    • ‘In the Middle Ages, pinholes in the ceiling of many early European cathedrals were used to tell time.’
    • ‘A catalytic converter works by forcing engine exhaust into a honeycomb of pinholes which restricts the molecules and creates more heat so they oxidize.’
    • ‘He then looked at Venus at night through the pinhole until the ‘star’ filled the hole.’
    • ‘Impermeable membranes can still get pinholes in them or tear.’
    • ‘Tape the foil over the hole in the bottom of the canister, so the pinhole is centered.’
    • ‘The peephole was slightly larger than a pinhole, but you get the idea.’
    • ‘If there are any areas covered with black flashing cement, examine the cement carefully for pinholes or cracks.’
    • ‘By light microscopy the capillary loops appear thickened and rigid with numerous small subepithelial spikes and pinholes noted on the silver stain.’
    • ‘When the bag is deployed, the sealant forces the air to escape the bag through pinholes in the fabric itself instead of the seams.’
    • ‘Put a few pinholes and pebbles in the bottom of the jugs, as the pebbles will keep them from blowing around when they're empty.’
    • ‘I sometimes use vintage fabrics, and these tend to have flaws: small marks, fading, tiny pinholes are all typical of vintage fabric.’
    • ‘Any small pinholes or leaks in the system could allow pathogens into the pipeline where they could multiply with impunity’
    • ‘The ancients thought stars were pinholes in the night sky with Heaven's light showing through.’
    • ‘A leaky gut is a condition in which the small intestine wall becomes inflamed and breached with tiny pinholes that leak putrid food particles into the blood stream.’
    • ‘Cracks and pinholes can allow carbon monoxide and other exhaust gases to leak into the cabin, causing one part of CO per 20,000 parts of air to seep into a person's system.’
    • ‘This phenomenon allows for a sectioning effect without using emission pinholes as in confocal microscopy.’
    • ‘In 1992, small pinholes were first discovered in the RCC panels of the Columbia.’
    • ‘Laser fire sprayed, burning pinholes in the glass.’
    hole, puncture, perforation
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