Pranayama (Sanskrit: prāṇāyāma) is a Sanskrit wor meaning "lengthening of the prana or breath". The word is composed of two Sanskrit words, Prāna, life force, or vital energy, particularly, the breath, and "āyāma", to lengthen or extend. It is often translated as control of the life force (prana). When used as a technical term in yoga, it is often translated more specifically as "breath control". Literal translations include A. A. Macdonell's "suspension of breath" and I. K. Taimni's "regulation of breath".