hy·dric I. \ˈhīdrik\adjective Etymology: International Scientific Vocabulary hydr- + -ic : relating to or containing hydrogen II. adjective Etymology:hydr- + -ic : characterized by, relating to, or requiring an abundance of moisture < a hydric habitat > < hydric plants > — compare mesic, xeric • hy·dri·cal·ly\-rə̇k(ə)lē\adverb