XIC

XIC can stand for:
 * Examination in Chief
 * The number of the beast or 616
 * In Eastern Greek XIC is chi-iota-sigma, or 616 (number)
 * X-inactivation center, a part of female X chromosome
 * Xichang Qingshan Airport, which has IATA code of "XIC"
 * Extracted Ion Chromatogram, a representation of data in hyphenated mass spectrometry/chromatography