Faces (Kabbalistic), or, as in Hebrew, Partzupheem. The word usually refers to Areekh Anpeen or Long Face, and Zeir-Anpeen, or Short Face, and Resha Hivrah the “White Head” or Face. The Kabbala states that from the moment of their appearance (the hour of differentiation of matter) all the material for future forms was contained in the three Heads which are one, and called Atteekah Kadosha (Holy Ancients and the Faces). It is when the Faces look toward each other, that the Holy Ancients” in three Heads, or Atteekah Kadosha, are called Areek Appayem, i.e., “Long Faces”. (See Zohar iii., 292a.) This refers to the three Higher Principles, cosmic and human.
Source: H.P.Blavatsky - The Theosophical Glossary