branching vein

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• vein — veinal, adj. veinless, adj. veinlike, adj. /vayn/, n. 1. one of the system of branching vessels or tubes conveying blood from various parts of the body to the heart. 2. (loosely) any blood vessel. 3. one of the riblike thickenings that form the… …   Universalium

• vein — I. noun Etymology: Middle English veine, from Anglo French, from Latin vena Date: 14th century 1. a. a narrow water channel in rock or earth or in ice b. (1) lode 2 (2) a bed of useful mineral matter c. lode 3 …   New Collegiate Dictionary

• Vein — A blood vessel that carries blood low in oxygen content from the body back to the heart. The deoxygenated form of hemoglobin (deoxyhemoglobin) in venous blood makes it appear dark. Veins are part of the afferent wing of the circulatory system… …   Medical dictionary

• vein — noun 1》 any of the tubes forming part of the circulation system by which blood is conveyed from all parts of the body towards the heart.     ↘(in general use) a blood vessel. 2》 (in plants) a slender rib running through a leaf, typically dividing …   English new terms dictionary

• vein — [[t]veɪn[/t]] n. 1) anat. one of the system of branching vessels or tubes conveying blood from various parts of the body to the heart 2) anat. (loosely) any blood vessel 3) ent one of the riblike thickenings that form the framework of the wing of …   From formal English to slang

• vein — /veɪn / (say vayn) noun 1. one of the system of branching vessels or tubes conveying blood from various parts of the body to the heart. 2. (loosely) any blood vessel. 3. one of the tubular, riblike thickenings that ramify in an insect s wing. 4.… …  

• accessory subcoastal vein — (ARTHROPODA: Insecta) In Perlidae, the vein given off from the subcosta, branching toward the apex of the wing …   Dictionary of invertebrate zoology

• Kuhnt postcentral vein — a vein branching from the vena centralis retina, extending posteriorly from the center of the optic nerve, and draining into the canalis opticus …   Medical dictionary

• fern — fernless, adj. fernlike, adj. /ferrn/, n. any seedless, nonflowering vascular plant of the class Filicinae, of tropical to temperate regions, characterized by true roots produced from a rhizome, triangular fronds that uncoil upward and have a… …   Universalium

• Fern — /ferrn/, n. a female given name. * * * Any of about 10,000–12,000 species (division Filicophyta) of nonflowering vascular plants that have true roots, stems, and complex leaves and reproduce by spores. Though ferns were once classified with the… …   Universalium

• Anastomosis — Vein skeleton of a Hydrangea leaf An anastomosis (plural anastomoses, from gr. ἀναστόμωσις, communicating opening) is the reconnection of two streams that previously branched out, such as blood vessels or leaf veins. The term is used in medicine …   Wikipedia