Driesch (German dri??) n (Biography) Hans Adolf Eduard (hans ?a?d?lf ??d???d). 1867?1941, German zoologist and embryologistCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014