hypoliposis

hy·po·li·po·sis

(hī'pō-li-pō'sis),
Presence of an abnormally small amount of fat in the tissues.

hypoliposis

(hī″pō-lĭ-pō′sĭs) [″ + lipos, fat, + osis, condition]
A deficiency of fat in the tissues.