| Simons' disease | A condition characterised by a complete loss of the subcutaneous fat of the upper part of the torso, the arms, neck, and face, sometimes with an increase of fat in the tissues about and below the pelvis. Synonym: Barraquer's disease, lipodystrophia progessiva superior, partial lipoatrophy, Simons' disease. (05 Mar 2000) |
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| Simons, Arthur | <person> German physician, *1877. See: Simons' disease. (05 Mar 2000) |
| Simonsiella | Genus of nonphotosynthetic, nonfruiting, Gram-negative, chemoorganotrophic, gliding bacteria that exist as multicellular filaments with the long axis of individual cells perpendicular to the long axis of the filament. The cells are flattened and curved to yield a convex-concave, crescent shaped symmetry. Isolated from the oral cavity of mammals. Type species is Simonsiella muelleri. (05 Mar 2000) |