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Babinski effect

Babinski reflex

noun
  1. physiol the reflex curling upwards of the toes (instead of inwards) when the sole of the foot is stroked, normal in infants below the age of two but a pathological condition in adults
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Word Origin

after Joseph Babinski (1857–1932), French neuropathologist
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012