▪ I.astringer|əˈstrɪndʒə(r)| [f. astringe v. + -er1.] That which astringes, an astringent. 1662R. Mathew Unl. Alch. §75. 97 When through impatience he had got some violent astringer..he was all torn in his Limbs. ▪ II.astringer var. austringer, keeper of goshawks.