perforation

• Существительное, обозначающее небольшое отверстие или ряд небольших отверстий, сделанных в материале, часто для облегчения разрыва или разделения, или процесс создания таких отверстий.

A noun referring to a small hole or a series of small holes made in a material, often to allow for easy tearing or separation, or the act of creating such holes.

1. Tear lineB1formal

   A series of small holes made in a material, such as paper or plastic, to allow it to be torn easily along a specific line.

   Линия отрыва

   • The ticket has a perforation so you can tear off the stub.
   • She carefully separated the pages along the perforation.
   • The envelope has a perforation for easy opening.

2. A holeB2formalmedical

   A small hole or opening made in a surface, often for functional or decorative purposes.

   Отверстие

   • The leather belt has a series of perforations for adjusting the size.
   • The metal sheet was covered in tiny perforations for ventilation.
   • The doctor noticed a small perforation in the patient's eardrum.

   Синонимыapertureboregapholeopeningorificepunctureslitvent

3. Act of punching holesC1formaltechnical

   The process or action of creating a hole or a row of holes in a material, often for separation or decoration.

   Перфорация

   • The perforation of the paper was done by a special machine.
   • The artist used perforation to create a pattern in the metal.
   • The factory specializes in the perforation of plastic sheets.

   Синонимыboringdrillingpiercing