| 释义 |
veinlet|ˈveɪnlɪt|
[f. vein n. Cf. veinulet.]
1. A small or minor vein (in various senses).
1831Carlyle Sart. Res. ii. iii, Here, too,..is a vein or veinlet of the grand World-circulation of Waters. 1855Emerson Misc. viii. 63 He no longer fills the veins and veinlets. 1872Huxley Physiol. v. 120 The blood of the capillaries of the lobule is poured into that vein by a minute veinlet.
2. a. Bot. A branch or subdivision of a vein or venule.
1832Lindley Introd. Bot. 91 The area of parenchyma, lying between two or more veins or veinlets. 1849Balfour Man. Bot. §141 There are also other veins of less extent..given off by the midrib, and these give origin to small veinlets. 1857T. Moore Handbk. Brit. Ferns (ed. 3) 8 The branches of the veins are venules, and the branches of the venules are veinlets. 1877Heath Fern World 215 Along on each side of the mid veins of the lobes are alternate veinlets.
b. Geol. Cf. vein n. 7.
1927[see ianthinite]. 1955[see kutnahorite]. 1974Encycl. Brit. Micropædia IX. 699/1 Sussexite occurs as hydrothermal fibrous veinlets in the U.S. at Franklin, N.J. |