Discussion of yoga poses

Sometimes I come across a pose which I don’t know the name of. It’s probably a variation of a “main” pose. Is it possible to name the variation using the sanskrit language? How do you do that?

The pose I am seeking a name for is a variation of the “Chest Expander Pose” or Parsvottanasana.
This is how you do it:

  • Stand with your feet at shoulder width
  • Fold your fingers behind your back
  • Bend backwards
  • Look up
  • Expand your chest

I hope someone can help with that.

Thanks