(neurology, pathology) A group of non-progressive, non-contagious conditions, caused by brain damage before birth or during infancy, characterized by impairment of muscular coordination.

(medicine, neurology) A rare degenerative disease involving the gradual deterioration and death of selected areas of the brain.

(pathology) A paralysis of cranial nerve VII (the facial nerve) resulting in inability to control facial muscles on the affected side.

(slang) Very friendly, especially in an excessive or artificial way.

Paralysis of the arm caused by injury to the upper group of the arm's main nerves, specifically the severing of the upper trunk C5–C6 nerves.

(dated) progressive muscular atrophy

(archaic) writer's cramp

Ramsay Hunt syndrome type 3

(archaic) sleep paralysis

(informal) Saturday night palsy caused by the pressure of one's partner's head during sleep