phobist

phobist

(ˈfəʊbɪst)
n
(Psychology) a person who suffers from an unusual fear or dread of something
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014