| 释义 |
midstream|ˌmɪdˈstriːm|
[f. mid a. + stream.]
1. a. The middle of the stream. Also fig.
c1315Greenwich Hosp. MS. Documents (P.R.O. Box 20, bundle O, No. 12), En primis a commensere de mydstreme de Derwent. 1669Dryden Tyrannic Love ii. i, The mid⁓stream's his; I, creeping by the side, Am shoulder'd off by his impetuous Tide. 1735Somerville Chase iii. 546 Down the Mid-stream he wafts Along. 1827E. Mackenzie Hist. Newcastle II. 742 note, The midstream of the river, taken at low water, is considered the boundary between the coal⁓mines. 1849E. B. Eastwick Dry Leaves 99 He was obliged to have the boat kept in mid-stream. 1899T. Nicol Recent Archæol. & Bible ii. 94 We are brought into the midstream of Biblical History.
attrib.1894Outing (U.S.) XXIV. 452/2 On the mid⁓stream side of the rocky islet..the bank was eight or ten feet high. 1905Daily Chron. 13 Mar. 4/4 The ford would land us on a mid-stream island.
b. Used advb.
1872Tennyson Gareth & Lynette 1015 Whom Gareth met mid⁓stream.
2. Med. Used, usu. attrib., to designate any portion of urine passed by an individual other than that first passed or last passed in an act of urination.
1958New Engl. Jrnl. Med. CCLIX. 764 (heading) A comparison of bacterial counts of the urine obtained by needle aspiration of the bladder, catheterization and midstream-voided methods. 1962Lancet 15 Dec. 1246/1 The urine was examined microscopically for pus cells... In men and children midstream specimens were used. 1972Ibid. 2 Sept. 452/2 Specimens of midstream urine were collected in sterile universal bottles. |