Signe de l'eventail
From Neurosigns
Babinski first described great toe extension (phénomène des orteils or the dorsiflexion of the toes) in 1896. In 1903, he described abduction of the smaller toes, later labeled by others as the signe de l’éventail (the fanning).
References
Brau C, Brau RH. Babinski's signe de l'eventail: a turning point in the history of neurology. P R Health Sci J 2008;27:103-5.
Campbell WW. DeJong's the neurologic examination, 7th ed. Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins, 2013.