| 释义 |
shoad, shode local.|ʃəʊd|
Forms: 7–9 shod, (8 shoald), 7– shoad, 8– shode; also 7 shadd, 7–8 shade.
[Prob. a derivative of OE. scádan to divide, separate: see shed v. Cf. shode. The genuineness of the forms shadd, shade is doubtful.]
Loose fragments of tin, lead, or copper ore mixed with earth, lying on or near the surface and indicating the proximity of a lode. Also (with pl.) one of these fragments.
1602Carew Cornwall i. 8 b, They discouer these workes, by certaine Tynne-stones, lying on the face of the ground, which they terme Shoad. 1670Pettus Fodinæ Reg. 3 They [Metals] are discovered to us..by Moles which cast up their shade or glittering earth. Ibid. 79 [Quotes (from Holland's Camden) the passage of Carew given above (quot. 1602), but with shadd substituted for shoad]. 1674Ray Coll. Words, Preparing of Tin 120 The Tinners find the Mine by the Shoad (or as they call it Squad) which is loose stones of Tin mixed with the Earth. 1681Grew Musæum iii. §i. v. 306 A Shod. Spuma Lupi. The forerunner of the Load or Mother of the Tin-Ore. 1778W. Pryce Min. Cornub. 126 Copper and Lead Shodes are very seldom met with. 1789J. Williams Min. Kingd. I. 406 The shoad of lead is always either coated or tarnished. 1809A. Henry Trav. 230 Examining the shods, or loose stones, in search of minerals. 1855J. R. Leifchild Cornwall 200 This stream-tin is..met with..in separate stones called shodes.
b. attrib., as shade earth, shoad-ore, shoad-stone.
1735Dict. Polygraph. s.v. China, To Gild China. You must first grind some *shade-earth on a marble, with linseed-oil,..with which trace out your figures.
1789J. Williams Min. Kingd. I. 362 There is a very material difference between float and *shoad ore, although they are both found upon the surface of the rock. Shoad ore..is always found in loose masses of all sizes, either in or under the upper soil.
a1728Woodward Fossils i. (1729) I. 202 A *Shoad-stone, found near the Surface of the Earth... Cornwall.
Hence ˈshoader (see quot. 1882). ˈshoading, the process of searching for shoad-ore by digging small pits (hence shoading-heap, shoad-pit).
1778W. Pryce Min. Cornub. 124 Another and very ancient method of discovering Tin Lodes, is by what we call Shodeing, that is, tracing them home by loose Stones, fragments, or Shodes. 1880W. Cornw. Gloss., Shoading-heaps, heaps from pits sunk in search of veins of metal. 1882Jago Anc. Lang. & Dial. Cornwall 263 Shoaders, miners engaged in shoading. Ibid., Shoading pits, pits dug in the search for a lode. 1893Northumbld. Gloss. s.v., To ‘go a shoading’ is to go prospecting for shoad-ore. |