Root

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ROOT. That part of a tree or plant under ground from which it draws most of its nourishment from the earth.
     2. When the roots of a tree planted in one man's land extend into that of another, this circumstance does not give the latter any right to the tree, though such is the doctrine of the civil law; Dig. 41, 1, 7, 13; but such person has a right to cut off the roots up to his line. Rolle's R. 394, vide Tree.
     3. In a figurative sense, the term root is used to signify the person from whom one or more others are descended. Vide Descent; Per stirpes.

References in periodicals archive ?
Venous-phase CT-scan in coronal view shows a homogenously enhanced nodule, in contact with the fourth duodenum, mesenteric root, first jejunal loops (without invasion); the vascular pedicle of the tumor came from the superior mesenteric vessels.
Intestinal autotransplantation for adenocarcinoma of pancreas involving the mesenteric root: our experience and literature review.
Tumours developed from mesenteric root are quite rare, according the literature reviewed.