a. [ad. L. vēnōs-us (whence also It., Sp., Pg. venoso), f. vēna VEIN sb.] Venous; spec. in Bot. and Ent. (see quots.).

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1661.  Lovell, Hist. Anim. & Min., 321. The short vessels arteriose and venose. Ibid. By this branch of the artery it passeth to the spleen…; by the venose branches to the trunk of the vas breve.

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1753.  Chambers, Cycl. Supp., s.v. Leaf, Venose Leaf, that on the surface of which there are a vast number of branched vessels, which frequently unite in an odd manner one with another.

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1760.  J. Lee, Introd. Bot., III. v. (1765), 184. Venose, veiny; when the Vessels are branched all over the Leaves, and their Anastomose[s] or Joinings are plain to the naked Eye.

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1826.  Kirby & Sp., Entomol., IV. xlvi. 290. Venose,… painted with lines that branch like veins. Ibid. (1828), (ed. 2), xxxix. 91. The arterial and venose currents [in insects].

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1866.  Treas. Bot., 1208/1. Indirectly venose is when lateral veins are combined within the margin, and emit other little veins.

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  Hence Venosely adv.

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1846.  Dana, Zooph. (1848), 271. The disks and ridges … venosely furcate, or reticulate.

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