con·com·i·tant (kən-kŏm'ĭ-tənt) adj. Occurring or existing concurrently; attendant. See Synonyms at contemporary. n. One that occurs or exists concurrently with another. [Late Latin concomitāns, concomitant-, present participle of concomitārī, to accompany : Latin com-, com- + Latin comitārī, to accompany (from comes, comit-, companion; see ei- in Indo-European roots).] con·com'i·tant·ly adv. |