Definition of pincushion in US English:



  • 1A small cushion into which pins are stuck for convenient storage.

    • ‘Frowning, she takes the pin out of her mouth and sticks it into a soft strawberry-shaped pincushion.’
    • ‘They began to make floral designs with their glass beads and applied these new shapes to many useful things, including pincushions, handbags, sewing cases, and clothing.’
    • ‘Or have you stuck them like pincushions with all your needles?’
    1. 1.1 A form of optical distortion in which straight lines along the edge of a screen or a lens bulge toward the center.
      • ‘During testing I noted no spherical aberration, no astigmatism, no curvature of field, no barrel or pincushion, and no rolling distortion.’
      • ‘Focusing the scopes on the distant brick wall with its very distinct vertical and horizontal lines, we checked for pincushion distortion (lines bowing in) and barrel distortion (lines bowing out).’
      • ‘Examining the camera we noted no astigmatism, curvature of field, rolling distortion, or pincushion distortion.’
      • ‘However I did note a small amount of pincushion distortion.’