Meaning of hypodynamia

hy•po•dy•nam•i•a

Pronunciation: (hī"pō-dī-nam'ē-u, -nā'mē-u, -di-), [key]
— n. Pathol.
  1. diminished strength; adynamia.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.