perforation

• Nom désignant un petit trou ou une série de petits trous pratiqués dans un matériau, souvent pour faciliter la déchirure ou la séparation, ou le processus de création de tels trous.

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.

   Ligne de déchirure

   • 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.

   Trou

   • 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.

   Synonymesapertureboregapholeopeningorificepunctureslitvent

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.

   perforation (action de perforer)

   • 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.

   Synonymesboringdrillingpiercing