| 释义 |
nematodirus|ˌnɛmətəʊˈdaɪrəs|
[mod.L. (B. H. Ransom 1907, in U.S. Dept. Agric. Bur. Anim. Ind. No. 116. 4), f. nematode a. and n. + Gr. δειρή neck.]
A parasitic nematode worm of the genus so called, belonging to the family Trichostrongylidæ, which is found in the intestine of many mammals and causes disease in young lambs. Also attrib.
1915Parasitology VIII. 146 The Nematodirus larvae are able to withstand complete desiccation. 1934Jrnl. Agric. Sci. XXIV. 207 Nematodirus larvae can regain the surface after being turned in by the plough. 1956Vet. Rec. 21 July 471 (title) Some observations on Nematodirus Disease in Northumberland and Durham. 1957Fraser & Stamp Sheep Husbandry & Diseases (ed. 3) x. 384 Until recently the worm nematodirus was thought to be relatively harmless to sheep. Ibid. 385 Nematodirus worms may be present in large numbers. 1960Farmer & Stockbreeder 9 Feb. 64/3 Border farmers..who have never seen nematodirus and who have long ceased to drench for worms. 1963Times 20 May 16/5 Forecasts could now be made of conditions likely to induce..fluke and nematodirus infections. |