pinhole

[US]/'pɪnhəʊl/
[UK]/'pɪnhol/
Frequency: Very High

Translation

n. small and circular hole; a small, narrow hole.
Word Forms
Pluralpinholes

Phrases & Collocations

pinhole camera

pinhole photography

Example Sentences

The photographer used a pinhole camera to take artistic black and white photos.

A pinhole in the wall allowed a small amount of light to filter into the room.

She discovered a pinhole leak in the water pipe under the sink.

The pinhole projector made it possible to safely view the solar eclipse.

The artist created a beautiful pinhole effect in the painting by using a unique technique.

A pinhole in the fabric of her dress revealed a glimpse of her skin underneath.

He drilled a pinhole in the lid of the jar to allow air to circulate inside.

The pinhole on the map showed the location of the hidden treasure.

The pinhole surgery technique minimizes scarring and shortens recovery time.

She used a pinhole to create a unique pattern on the pottery vase.

Real-world Examples

Each pinhole projects a separate, sharp image onto the geckos retina.

Source: Bilingual Edition of TED-Ed Selected Speeches

Meanwhile, nocturnal geckos have pupils that shrink into slits studded with pinholes in higher light conditions.

Source: Bilingual Edition of TED-Ed Selected Speeches

Finally, you can make a pinhole projector to cast a single, clear projection of the sun.

Source: Children's Learning Classroom

I couldn't afford a pinhole and a light bulb.

Source: Pretty Little Liars Season 3

Another way to safely view the eclipse is to use a pinhole viewer.

Source: CNN 10 Student English August 2017 Collection

Pinhole bored dwellings suggest that our sulfuria grows in them more abundantly than might be expected.

Source: The Economist Science and Technology

If you don't have these filters you can still observe the eclipse by making a pinhole camera using materials from around your home.

Source: Children's Learning Classroom

Buildings that have a combination of copper and galvanized steel are susceptible to pinholes and corrosion caused by the mobility of ions in the water.

Source: The Big Bang Theory Season 10

And if you’re looking for a safe way to see the eclipse, we’ve got you covered with our special SciShow pinhole projector card!

Source: SciShow Collection

He was probably familiar with the camera obscura, a device that projected an image through a pinhole and onto a screen in a darkened chamber (new research suggests he may have been introduced to it by the Jesuits of Delft).

Source: The Economist (Summary)

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