from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A person unduly fearful or contemptuous of that which is foreign, especially of strangers or foreign peoples.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. One who fears that which is unknown; one who fears people who are different from oneself, especially in the case of foreign people
From xeno- + -phobe. From Ancient Greek ξένος (xenos, "foreign, strange"), + Ancient Greek φόβος (phobos, "fear"). (Wiktionary)