| 释义 |
obturation|ɒbtjʊəˈreɪʃən|
[ad. L. obtūrātiōn-em, n. of action from obtūrāre to stop up: cf. F. obturation (15–16th c. in Hatz.-Darm.).]
The action of stopping up; obstruction of an opening or channel; spec. in Gunnery (cf. next, 2 b).
1610P. Barrough Meth. Physick iii. xxxviii. (1639) 162 About the beginning of obturation and stopping, the urine is..little in quantity. 1611Cotgr., Amafrose, blindnesse caused by the obturation of the Opticke sinew. 1634Bp. Hall Contempl., N.T. iv. ii, Some are deaf by an outward obturation. 1880Daily Tel. 31 Dec. 2/6 The sealing of the breech, or obturation, as it is called, is effected by an expanding steel cap on the face of the breech-screw. |