Christian - A word that describes a person who believes in the deity and ascribes to the teachings of the CHRIST (of Latin Christus or Greek Christos origin. Originally translated from Hebrew Messiah or Mashia meaning 'annointed').
PHOBE - A suffix from of the word PHOBIA of Greek origin. Meaning a person who suffers a specific persistent, abnormal, and/or irrational fear of the preceding word.
So a Christianophobe is a person with an irrational fear or aversion to Christians.