Habitual; marking a particular habit or condition of body: applied to fever of the form presented in phthisis, characterized by marked diurnal remissions and exacerbations, and accompanied with flushed cheeks, hot skin, and emaciation.Pertaining to or affected with such fever; feverish; consumptive: as, a hectic flush.n. A hectic fever; a wasting away, attended by heightened color.n. A hectic flush.