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The act or operation of transferring the blood of one man or animal into the vascular system of another; also, the introduction of any fluid into the blood vessels, or into a cavity of the body from which it can readily be adsorbed into the vessels; intrafusion; as, the peritoneal transfusion of milk.…

A modified form of dentine, which is permeated by blood capillaries; vascular dentine.

s, one of which is nonsexual and sporophoric, the other sexual and oöphoric. Divided into Vascular Acrogens, or Pteridophyta, having the sporophoric plant conspicuous and consisting partly of vascular tissue, as in Ferns, Lycopods, and Equiseta, and Cellular Acrogens, or Bryophyta, having the sexual plant most conspicu…

Having fibrovascular threads extending throughout the lamina; as, a veined leaf.

The soft and highly vascular deciduous skin which envelops and nourishes the antlers of deer during their rapid growth. Cotton velvet, an imitation of velvet, made of cotton. -- Velvet cork, the best kind of cork bark, supple, elastic, and not woody or porous. -- Velvet crab a European crab (Portunus puber). When adu…

One of the minute papillary processes on certain vascular membranes; a villosity; as, villi cover the lining of the small intestines of many animals and serve to increase the absorbing surface.

A small, usually hard, tumor on the skin formed by enlargement of its vascular papillæ, and thickening of the epidermis which covers them.

ing. -- Wood fern. (Bot.) See Shield fern, under Shield. -- Wood fiber. (a) (Bot.) Fibrovascular tissue. (b) Wood comminuted, and reduced to a powdery or dusty mass. -- Wood fretter (Zoöl.), any one of numerous species of beetles whose larvæ bore in the wood, or beneath the bark, of trees. -- Wood frog (Zoöl.), a c…

That portion of a fibrovascular bundle which has developed, or will develop, into wood cells; -- distinguished from phloëm.