Moonlight:
Wall (Anatomy, Zoology) - the membranous outer layer or lining of an organ or cavity.
"the wall of the stomach"
xenophobia: fear and hatred of strangers or foreigners or of anything that is strange or foreign.
synonyms: prejudice, intolerance, bigotry, insularity, parochialism, isolationism, ethnocentrism, ethnocentricity, racism, racialism, nationalism, jingoism