| 释义 |
imperforation|ɪmpɜːfəˈreɪʃən|
[f. im-2 + perforation. Cf. F. imperforation (Cotgr.).]
The condition of being imperforate; an instance or case of this.
1656Blount Glossogr., Imperforation, a closing or shutting up for want of boring or piercing. 1799M. Underwood Treat. Dis. Childr. (ed. 4) II. 239 Imperforations of the vagina, the anus and the urethra. 1822–34Good's Study Med. (ed. 4) III. 197 Where the cause [of deafness] is an imperforation of either of the passages. Ibid. IV. 99 A temporary imperforation of the urethra. |