单词 | venule |
释义 | venulen. 1. In the circulatory system of a person or animal: a small or minor vein; (in later use) spec. a very small vein which joins continuously to a capillary. Cf. veinlet n. 1. ΘΚΠ the world > life > the body > vascular system > blood vessel > [noun] > small riveret1615 veinlet1652 veinulet1662 venule1766 the world > plants > part of plant > leaf > [noun] > part or side of > rib or vein nerve?a1425 ribc1450 vein?c1450 sinew1551 brawn1601 master-vein1658 costa1699 venule1766 pen1773 surculus1775 midrib1793 venule1806 veinlet1807 rachis1830 nervure1842 nerving1854 1766 Universal Mag. Apr. 186/1 Another part of the spirits is catched up by venules that conduct them into the blood veins. 1876 Trans. Clin. Soc. 9 91 The white cells accumulate in the small venules in surprising numbers. 1899 T. C. Allbutt et al. Syst. Med. VIII. 826 The venules on the skin of the nose and cheeks of old people. 1967 Brain 90 683 The earliest change seen..was darkening of the colour of the blood in venules and veins from the medium blue to very dark blue or blue-black. 2007 Science 13 Apr. 191/3 These T cells..exit the bloodstream across the walls of tiny veins called high endothelial venules. 2. A small vein (in various other senses), esp. a branch of a vein in a leaf or in an insect's wing; a veinlet. ΘΚΠ the world > plants > part of plant > leaf > [noun] > part or side of > rib or vein nerve?a1425 ribc1450 vein?c1450 sinew1551 brawn1601 master-vein1658 costa1699 venule1766 pen1773 surculus1775 midrib1793 venule1806 veinlet1807 rachis1830 nervure1842 nerving1854 the world > animals > invertebrates > phylum Arthropoda > class Insecta > parts of insects > [noun] > wings(s) > nervure vein1658 nerve1752 venule1806 nervure1817 riba1836 subcosta1852 cubitus1895 media1895 cubit- 1806 Trans. Royal Irish Acad. 10 Science 16 Singular cylindrically aggregated crystals of foliated chlorite, in venules of almost coeval formation with the rock itself. 1841 Hooker's Jrnl. Bot. 3 394 Orthophlebieæ.—Venation free; none of the venules anastomosing. a1852 W. Macgillivray Nat. Hist. Dee Side (1855) 171 The minute glandular bodies are all situated on the venules, and are of a circular form. 1868 A. S. Packard Guide to Study of Insects 233 The subcostal [vein], near the middle of the wing, is usually subdivided into five branches, which are called venules. 1905 Q. Jrnl. Geol. Soc. 61 466 This is a rather soft, white, blocky chalk, with greyish venules. 1926 Jrnl. N.Y. Entomol. Soc. 34 244 A transverse venule close to bases of two ulnar veins. 1966 New Phytologist 65 307 Lateral and lesser veins and venules similarly but progressively less and less delimited. 2008 Kew Bull. 63 317/2 Leaves 3–5-nerved with conspicuous secondary venules on the abaxial surface. This entry has been updated (OED Third Edition, June 2017; most recently modified version published online March 2022). < n.1766 |
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