Nāḍī Śodhana Prāṇāyāma
Nāḍī Śodhana Prāṇāyāma -- Also known as Alternate Nostril Breathing -- is a popular breathing technique in modern yoga in the West. There are actually several alternate nostril breathing techniques. They differ in small ways, such as starting with the left or the right nostril, starting with an inhale or exhale, etc. Śodhana is pronounced Shod(h)na. Here is an excellent pronunciation resource. Nāḍī = Energy Channel Śodhana = Purifying or Cleansing Prāṇā = Energy / Vital F