‖n. [ NL. fr. Gr. &unr_; mucus + oedema. ] (Med.) A disease producing a peculiar cretinoid appearance of the face, slow speech, and dullness of intellect, and due to failure of the functions of the thyroid gland. [ Also spelled myxedema. ]-- Myx`oe*dem"a*tous a., Myx`oe*dem"ic a. [ Webster 1913 Suppl. ]