WordNet (r) 3.0 (2006):

anima
    n 1: (Jungian psychology) the inner self (not the external
         persona) that is in touch with the unconscious

Moby Thesaurus II by Grady Ward, 1.0:

93 Moby Thesaurus words for "anima":
   anima humana, animating force, animus, atman, ba, bathmism,
   beating heart, biological clock, biorhythm, blood, breath,
   breath of life, buddhi, coconscious, collective unconscious,
   conscience, conscious self, death instinct, divine breath,
   divine spark, ego, ego ideal, ego-id conflict, elan vital,
   essence of life, ethical self, force of life, foreconscious,
   growth force, heart, heartbeat, heartblood, id, impulse of life,
   inner man, inspiriting force, jiva, jivatma, khu, libidinal energy,
   libido, life breath, life cycle, life essence, life force,
   life principle, life process, lifeblood, living force, manes, mind,
   motive force, nephesh, persona, personality, pleasure principle,
   pneuma, prana, preconscious, primitive self, psyche,
   psychic apparatus, purusha, racial unconscious, ruach,
   seat of life, self, shade, shadow, soul, spark of life, spirit,
   spiritual being, spiritus, subconscious, subconscious mind,
   subliminal, subliminal self, submerged mind, superego, the self,
   unconscious, unconscious mind, vis vitae, vis vitalis,
   vital energy, vital flame, vital fluid, vital force, vital impulse,
   vital principle, vital spark, vital spirit