pinhole
Needle's smallest wound
A pinhole is a tiny hole, especially one made by or as if by a pin.
The word emphasizes smallness—a pinhole leak in a pipe, a pinhole camera that admits light through a single point.
Pinholes are often defects: The inspector found pinholes in the weld.
optics
Image capturing device
- apertureAdjustable optical inlet
- photographyCreating images from light
- lensLight-focusing curved glass
- projectionSomething that extends outward
image · light · exposure · focus · sharpness · diffraction · viewer · eclipse
camera
Image capturing device
- apertureAdjustable optical inlet
- photographyCreating images from light
- lensLight-focusing curved glass
projection · image · light · exposure · focus · sharpness · diffraction · viewer · eclipse · sunlight
tiny
Extremely small in size
- minusculeExtremely small in size
- microscopicToo small for eyes
- minuteSixtieth of an hour
small · fine · narrow · precise · exact · needle · point · diameter · aperture · opening
leak
Escape through a breach
- punctureHole from penetration
- perforationHole punched through something
- flawImperfection in something
tear · imperfection · corrosion · rust · damage · wear · seal · pipe · tire · membrane
- Toy CamerasDiana, fisheye camera
- narrow openingscrack, crevice, slit, slot, fissure
- openingsopening, aperture, gap, slit, crack
- surface flawscrack, chip, scratch, dent, stain
- microscopymicroscope, objective lens, compound microscope, eyepiece, compound microscopes
- chip defectsdefects, dislocations, dislocation, voids, cracks