UN has various meanings in the Medical category. Discover the full forms, definitions, and usage contexts of UN in Medical.
A code meaning "information not available. An unidentified target. An aircraft or ship that has not been determined to be hostile, friendly, or neutral using identification friend or foe and other techniques, but that must be tracked by air defense or naval engagement systems.
MedicalOne of three large nerves of the hand. It supplies muscles of fine manipulation located in the hand and provides sensory feedback via the skin of the little finger and part of the ring finger. Because the ulnar nerve enters the hand immediately below the skin, it is susceptible to damage from poorly designed tool handles which apply pressure to the palm on the side of the little finger.
MedicalLast updated: