(hof'măn, 'man‵ )

Ger. neurologist, 1857–1919.

H. reflex An abnormal reflex found in patients with damaged pyramidal tracts of the brain. Flexion of the distal interphalangeal joint of the middle finger makes the thumb of the same hand flex and adduct. SYN: Hoffmann sign.

H. sign Hoffmann reflex.