pinning

Pluralpinnings

1. 1
   verb

   Present participle and gerund of pin. Use this form for an action that is happening now.

   She is pinning the notice to the board.

   He kept pinning his hopes on a lucky break.

   Note
2. 2
   nouncountable or uncountable

   The act of fastening or holding something firmly in place.

   The pinning of the curtains kept them from blowing around.

   Good pinning makes sewing much easier.

   Similarfastening

3. 3
   nouncountable

   A ceremony where someone is given a pin badge to mark an honor or a step forward.

   Her nursing pinning was held in the school hall.

   Parents attended the pinning to celebrate the new graduates.

   Note
4. 4
   noununcountable

   In physics, the act of fixing a tiny particle into one exact state instead of leaving it uncertain.

   Like setting a spinning coin flat on the table so it shows one clear side instead of blurring.

   The pinning of the electron's spin let scientists measure it clearly.

   Without pinning, the particle stays in many states at once.

   Note

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