key vein

key vein

a deep-seated, dilated vein causing a so-called spider burst on the surface.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
As a result of her complications, they gave her a key vein that the twins shared.
The focus of the current drill program is the conversion of Inferred Resources within key veins in the upper part of the Cerro Blanco ore body and vein extensions outside of the current resource.
Major road networks are key veins of operations and the use of cloned number plates has "presented challenges" to ANPR (Automatic Number Plate Recognition) equipment.
In the process, he illuminates key veins of the history of communication research and cultural studies since the 1960s.